21381661496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{141107}}^1$

素因数の和:141204

約数の個数: 64

約数和(自身を含む): 45515796480

約数和(自身を除く): 24134134984

約数列:

[1, 2, 4, 8, 13, 26, 31, 47, 52, 62, 94, 104, 124, 188, 248, 376, 403, 611, 806, 1222, 1457, 1612, 2444, 2914, 3224, 4888, 5828, 11656, 18941, 37882, 75764, 141107, 151528, 282214, 564428, 1128856, 1834391, 3668782, 4374317, 6632029, 7337564, 8748634, 13264058, 14675128, 17497268, 26528116, 34994536, 53056232, 56866121, 86216377, 113732242, 172432754, 205592899, 227464484, 344865508, 411185798, 454928968, 689731016, 822371596, 1644743192, 2672707687, 5345415374, 10690830748, 21381661496]

約数ペア:

[(1, 21381661496), (2, 10690830748), (4, 5345415374), (8, 2672707687), (13, 1644743192), (26, 822371596), (31, 689731016), (47, 454928968), (52, 411185798), (62, 344865508), (94, 227464484), (104, 205592899), (124, 172432754), (188, 113732242), (248, 86216377), (376, 56866121), (403, 53056232), (611, 34994536), (806, 26528116), (1222, 17497268), (1457, 14675128), (1612, 13264058), (2444, 8748634), (2914, 7337564), (3224, 6632029), (4888, 4374317), (5828, 3668782), (11656, 1834391), (18941, 1128856), (37882, 564428), (75764, 282214), (141107, 151528)]