21291244826

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1\times {\mathrm{659}}^1\times {\mathrm{1019}}^1$

素因数の和:1954

約数の個数: 32

約数和(自身を含む): 32572108800

約数和(自身を除く): 11280863974

約数列:

[1, 2, 83, 166, 191, 382, 659, 1019, 1318, 2038, 15853, 31706, 54697, 84577, 109394, 125869, 169154, 194629, 251738, 389258, 671521, 1343042, 10447127, 16154207, 20894254, 32308414, 55736243, 111472486, 128260511, 256521022, 10645622413, 21291244826]

約数ペア:

[(1, 21291244826), (2, 10645622413), (83, 256521022), (166, 128260511), (191, 111472486), (382, 55736243), (659, 32308414), (1019, 20894254), (1318, 16154207), (2038, 10447127), (15853, 1343042), (31706, 671521), (54697, 389258), (84577, 251738), (109394, 194629), (125869, 169154)]