21973560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:166

約数の個数: 192

約数和(自身を含む): 79535520

約数和(自身を除く): 57561960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 49, 56, 60, 70, 74, 84, 98, 101, 105, 111, 120, 140, 147, 148, 168, 185, 196, 202, 210, 222, 245, 259, 280, 294, 296, 303, 370, 392, 404, 420, 444, 490, 505, 518, 555, 588, 606, 707, 735, 740, 777, 808, 840, 888, 980, 1010, 1036, 1110, 1176, 1212, 1295, 1414, 1470, 1480, 1515, 1554, 1813, 1960, 2020, 2072, 2121, 2220, 2424, 2590, 2828, 2940, 3030, 3108, 3535, 3626, 3737, 3885, 4040, 4242, 4440, 4949, 5180, 5439, 5656, 5880, 6060, 6216, 7070, 7252, 7474, 7770, 8484, 9065, 9898, 10360, 10605, 10878, 11211, 12120, 14140, 14504, 14847, 14948, 15540, 16968, 18130, 18685, 19796, 21210, 21756, 22422, 24745, 26159, 27195, 28280, 29694, 29896, 31080, 36260, 37370, 39592, 42420, 43512, 44844, 49490, 52318, 54390, 56055, 59388, 72520, 74235, 74740, 78477, 84840, 89688, 98980, 104636, 108780, 112110, 118776, 130795, 148470, 149480, 156954, 183113, 197960, 209272, 217560, 224220, 261590, 296940, 313908, 366226, 392385, 448440, 523180, 549339, 593880, 627816, 732452, 784770, 915565, 1046360, 1098678, 1464904, 1569540, 1831130, 2197356, 2746695, 3139080, 3662260, 4394712, 5493390, 7324520, 10986780, 21973560]

約数ペア:

[(1, 21973560), (2, 10986780), (3, 7324520), (4, 5493390), (5, 4394712), (6, 3662260), (7, 3139080), (8, 2746695), (10, 2197356), (12, 1831130), (14, 1569540), (15, 1464904), (20, 1098678), (21, 1046360), (24, 915565), (28, 784770), (30, 732452), (35, 627816), (37, 593880), (40, 549339), (42, 523180), (49, 448440), (56, 392385), (60, 366226), (70, 313908), (74, 296940), (84, 261590), (98, 224220), (101, 217560), (105, 209272), (111, 197960), (120, 183113), (140, 156954), (147, 149480), (148, 148470), (168, 130795), (185, 118776), (196, 112110), (202, 108780), (210, 104636), (222, 98980), (245, 89688), (259, 84840), (280, 78477), (294, 74740), (296, 74235), (303, 72520), (370, 59388), (392, 56055), (404, 54390), (420, 52318), (444, 49490), (490, 44844), (505, 43512), (518, 42420), (555, 39592), (588, 37370), (606, 36260), (707, 31080), (735, 29896), (740, 29694), (777, 28280), (808, 27195), (840, 26159), (888, 24745), (980, 22422), (1010, 21756), (1036, 21210), (1110, 19796), (1176, 18685), (1212, 18130), (1295, 16968), (1414, 15540), (1470, 14948), (1480, 14847), (1515, 14504), (1554, 14140), (1813, 12120), (1960, 11211), (2020, 10878), (2072, 10605), (2121, 10360), (2220, 9898), (2424, 9065), (2590, 8484), (2828, 7770), (2940, 7474), (3030, 7252), (3108, 7070), (3535, 6216), (3626, 6060), (3737, 5880), (3885, 5656), (4040, 5439), (4242, 5180), (4440, 4949)]