260918931

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2060

約数の個数: 48

約数和(自身を含む): 442385664

約数和(自身を除く): 181466733

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 169, 259, 273, 481, 507, 777, 1183, 1443, 1987, 3367, 3549, 5961, 6253, 10101, 13909, 18759, 25831, 41727, 43771, 73519, 77493, 131313, 180817, 220557, 335803, 514633, 542451, 955747, 1007409, 1543899, 2350621, 2867241, 6690229, 7051863, 12424711, 20070687, 37274133, 86972977, 260918931]

約数ペア:

[(1, 260918931), (3, 86972977), (7, 37274133), (13, 20070687), (21, 12424711), (37, 7051863), (39, 6690229), (91, 2867241), (111, 2350621), (169, 1543899), (259, 1007409), (273, 955747), (481, 542451), (507, 514633), (777, 335803), (1183, 220557), (1443, 180817), (1987, 131313), (3367, 77493), (3549, 73519), (5961, 43771), (6253, 41727), (10101, 25831), (13909, 18759)]