21177530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2437}}^1$

素因数の和:2534

約数の個数: 32

約数和(自身を含む): 42128640

約数和(自身を除く): 20951110

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 158, 395, 790, 869, 1738, 2437, 4345, 4874, 8690, 12185, 24370, 26807, 53614, 134035, 192523, 268070, 385046, 962615, 1925230, 2117753, 4235506, 10588765, 21177530]

約数ペア:

[(1, 21177530), (2, 10588765), (5, 4235506), (10, 2117753), (11, 1925230), (22, 962615), (55, 385046), (79, 268070), (110, 192523), (158, 134035), (395, 53614), (790, 26807), (869, 24370), (1738, 12185), (2437, 8690), (4345, 4874)]