20121339524

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{481879}}^1$

素因数の和:481980

約数の個数: 48

約数和(自身を含む): 41935125120

約数和(自身を除く): 21813785596

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 73, 143, 146, 286, 292, 572, 803, 949, 1606, 1898, 3212, 3796, 10439, 20878, 41756, 481879, 963758, 1927516, 5300669, 6264427, 10601338, 12528854, 21202676, 25057708, 35177167, 68908697, 70354334, 137817394, 140708668, 275634788, 386948837, 457303171, 773897674, 914606342, 1547795348, 1829212684, 5030334881, 10060669762, 20121339524]

約数ペア:

[(1, 20121339524), (2, 10060669762), (4, 5030334881), (11, 1829212684), (13, 1547795348), (22, 914606342), (26, 773897674), (44, 457303171), (52, 386948837), (73, 275634788), (143, 140708668), (146, 137817394), (286, 70354334), (292, 68908697), (572, 35177167), (803, 25057708), (949, 21202676), (1606, 12528854), (1898, 10601338), (3212, 6264427), (3796, 5300669), (10439, 1927516), (20878, 963758), (41756, 481879)]