21214620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 144

約数和(自身を含む): 74692800

約数和(自身を除く): 53478180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 113, 126, 140, 149, 180, 210, 226, 252, 298, 315, 339, 420, 447, 452, 565, 596, 630, 678, 745, 791, 894, 1017, 1043, 1130, 1260, 1341, 1356, 1490, 1582, 1695, 1788, 2034, 2086, 2235, 2260, 2373, 2682, 2980, 3129, 3164, 3390, 3955, 4068, 4172, 4470, 4746, 5085, 5215, 5364, 6258, 6705, 6780, 7119, 7910, 8940, 9387, 9492, 10170, 10430, 11865, 12516, 13410, 14238, 15645, 15820, 16837, 18774, 20340, 20860, 23730, 26820, 28476, 31290, 33674, 35595, 37548, 46935, 47460, 50511, 62580, 67348, 71190, 84185, 93870, 101022, 117859, 142380, 151533, 168370, 187740, 202044, 235718, 252555, 303066, 336740, 353577, 471436, 505110, 589295, 606132, 707154, 757665, 1010220, 1060731, 1178590, 1414308, 1515330, 1767885, 2121462, 2357180, 3030660, 3535770, 4242924, 5303655, 7071540, 10607310, 21214620]

約数ペア:

[(1, 21214620), (2, 10607310), (3, 7071540), (4, 5303655), (5, 4242924), (6, 3535770), (7, 3030660), (9, 2357180), (10, 2121462), (12, 1767885), (14, 1515330), (15, 1414308), (18, 1178590), (20, 1060731), (21, 1010220), (28, 757665), (30, 707154), (35, 606132), (36, 589295), (42, 505110), (45, 471436), (60, 353577), (63, 336740), (70, 303066), (84, 252555), (90, 235718), (105, 202044), (113, 187740), (126, 168370), (140, 151533), (149, 142380), (180, 117859), (210, 101022), (226, 93870), (252, 84185), (298, 71190), (315, 67348), (339, 62580), (420, 50511), (447, 47460), (452, 46935), (565, 37548), (596, 35595), (630, 33674), (678, 31290), (745, 28476), (791, 26820), (894, 23730), (1017, 20860), (1043, 20340), (1130, 18774), (1260, 16837), (1341, 15820), (1356, 15645), (1490, 14238), (1582, 13410), (1695, 12516), (1788, 11865), (2034, 10430), (2086, 10170), (2235, 9492), (2260, 9387), (2373, 8940), (2682, 7910), (2980, 7119), (3129, 6780), (3164, 6705), (3390, 6258), (3955, 5364), (4068, 5215), (4172, 5085), (4470, 4746)]