21849240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2$

素因数の和:114

約数の個数: 192

約数和(自身を含む): 81043200

約数和(自身を除く): 59193960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 37, 38, 40, 42, 56, 57, 60, 70, 74, 76, 84, 95, 105, 111, 114, 120, 133, 140, 148, 152, 168, 185, 190, 210, 222, 228, 259, 266, 280, 285, 296, 370, 380, 399, 420, 444, 456, 518, 532, 555, 570, 665, 703, 740, 760, 777, 798, 840, 888, 1036, 1064, 1110, 1140, 1295, 1330, 1369, 1406, 1480, 1554, 1596, 1995, 2072, 2109, 2220, 2280, 2590, 2660, 2738, 2812, 3108, 3192, 3515, 3885, 3990, 4107, 4218, 4440, 4921, 5180, 5320, 5476, 5624, 6216, 6845, 7030, 7770, 7980, 8214, 8436, 9583, 9842, 10360, 10545, 10952, 13690, 14060, 14763, 15540, 15960, 16428, 16872, 19166, 19684, 20535, 21090, 24605, 26011, 27380, 28120, 28749, 29526, 31080, 32856, 38332, 39368, 41070, 42180, 47915, 49210, 52022, 54760, 57498, 59052, 73815, 76664, 78033, 82140, 84360, 95830, 98420, 104044, 114996, 118104, 130055, 143745, 147630, 156066, 164280, 182077, 191660, 196840, 208088, 229992, 260110, 287490, 295260, 312132, 364154, 383320, 390165, 520220, 546231, 574980, 590520, 624264, 728308, 780330, 910385, 1040440, 1092462, 1149960, 1456616, 1560660, 1820770, 2184924, 2731155, 3121320, 3641540, 4369848, 5462310, 7283080, 10924620, 21849240]

約数ペア:

[(1, 21849240), (2, 10924620), (3, 7283080), (4, 5462310), (5, 4369848), (6, 3641540), (7, 3121320), (8, 2731155), (10, 2184924), (12, 1820770), (14, 1560660), (15, 1456616), (19, 1149960), (20, 1092462), (21, 1040440), (24, 910385), (28, 780330), (30, 728308), (35, 624264), (37, 590520), (38, 574980), (40, 546231), (42, 520220), (56, 390165), (57, 383320), (60, 364154), (70, 312132), (74, 295260), (76, 287490), (84, 260110), (95, 229992), (105, 208088), (111, 196840), (114, 191660), (120, 182077), (133, 164280), (140, 156066), (148, 147630), (152, 143745), (168, 130055), (185, 118104), (190, 114996), (210, 104044), (222, 98420), (228, 95830), (259, 84360), (266, 82140), (280, 78033), (285, 76664), (296, 73815), (370, 59052), (380, 57498), (399, 54760), (420, 52022), (444, 49210), (456, 47915), (518, 42180), (532, 41070), (555, 39368), (570, 38332), (665, 32856), (703, 31080), (740, 29526), (760, 28749), (777, 28120), (798, 27380), (840, 26011), (888, 24605), (1036, 21090), (1064, 20535), (1110, 19684), (1140, 19166), (1295, 16872), (1330, 16428), (1369, 15960), (1406, 15540), (1480, 14763), (1554, 14060), (1596, 13690), (1995, 10952), (2072, 10545), (2109, 10360), (2220, 9842), (2280, 9583), (2590, 8436), (2660, 8214), (2738, 7980), (2812, 7770), (3108, 7030), (3192, 6845), (3515, 6216), (3885, 5624), (3990, 5476), (4107, 5320), (4218, 5180), (4440, 4921)]