21259524

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{953}}^1$

素因数の和:997

約数の個数: 72

約数和(自身を含む): 58659552

約数和(自身を除く): 37400028

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 132, 143, 156, 169, 286, 338, 429, 507, 572, 676, 858, 953, 1014, 1716, 1859, 1906, 2028, 2859, 3718, 3812, 5577, 5718, 7436, 10483, 11154, 11436, 12389, 20966, 22308, 24778, 31449, 37167, 41932, 49556, 62898, 74334, 125796, 136279, 148668, 161057, 272558, 322114, 408837, 483171, 545116, 644228, 817674, 966342, 1635348, 1771627, 1932684, 3543254, 5314881, 7086508, 10629762, 21259524]

約数ペア:

[(1, 21259524), (2, 10629762), (3, 7086508), (4, 5314881), (6, 3543254), (11, 1932684), (12, 1771627), (13, 1635348), (22, 966342), (26, 817674), (33, 644228), (39, 545116), (44, 483171), (52, 408837), (66, 322114), (78, 272558), (132, 161057), (143, 148668), (156, 136279), (169, 125796), (286, 74334), (338, 62898), (429, 49556), (507, 41932), (572, 37167), (676, 31449), (858, 24778), (953, 22308), (1014, 20966), (1716, 12389), (1859, 11436), (1906, 11154), (2028, 10483), (2859, 7436), (3718, 5718), (3812, 5577)]