21000514836

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1481}}^1\times {\mathrm{5821}}^1$

素因数の和:7345

約数の個数: 96

約数和(自身を含む): 57981530880

約数和(自身を除く): 36981016044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 29, 42, 58, 84, 87, 116, 174, 203, 348, 406, 609, 812, 1218, 1481, 2436, 2962, 4443, 5821, 5924, 8886, 10367, 11642, 17463, 17772, 20734, 23284, 31101, 34926, 40747, 41468, 42949, 62202, 69852, 81494, 85898, 122241, 124404, 128847, 162988, 168809, 171796, 244482, 257694, 300643, 337618, 488964, 506427, 515388, 601286, 675236, 901929, 1012854, 1181663, 1202572, 1803858, 2025708, 2363326, 3544989, 3607716, 4726652, 7089978, 8620901, 14179956, 17241802, 25862703, 34483604, 51725406, 60346307, 103450812, 120692614, 181038921, 241385228, 250006129, 362077842, 500012258, 724155684, 750018387, 1000024516, 1500036774, 1750042903, 3000073548, 3500085806, 5250128709, 7000171612, 10500257418, 21000514836]

約数ペア:

[(1, 21000514836), (2, 10500257418), (3, 7000171612), (4, 5250128709), (6, 3500085806), (7, 3000073548), (12, 1750042903), (14, 1500036774), (21, 1000024516), (28, 750018387), (29, 724155684), (42, 500012258), (58, 362077842), (84, 250006129), (87, 241385228), (116, 181038921), (174, 120692614), (203, 103450812), (348, 60346307), (406, 51725406), (609, 34483604), (812, 25862703), (1218, 17241802), (1481, 14179956), (2436, 8620901), (2962, 7089978), (4443, 4726652), (5821, 3607716), (5924, 3544989), (8886, 2363326), (10367, 2025708), (11642, 1803858), (17463, 1202572), (17772, 1181663), (20734, 1012854), (23284, 901929), (31101, 675236), (34926, 601286), (40747, 515388), (41468, 506427), (42949, 488964), (62202, 337618), (69852, 300643), (81494, 257694), (85898, 244482), (122241, 171796), (124404, 168809), (128847, 162988)]