25421643

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 42025984

約数和(自身を除く): 16604341

約数列:

[1, 3, 9, 13, 31, 39, 43, 93, 117, 129, 163, 279, 387, 403, 489, 559, 1209, 1333, 1467, 1677, 2119, 3627, 3999, 5031, 5053, 6357, 7009, 11997, 15159, 17329, 19071, 21027, 45477, 51987, 63081, 65689, 91117, 155961, 197067, 217279, 273351, 591201, 651837, 820053, 1955511, 2824627, 8473881, 25421643]

約数ペア:

[(1, 25421643), (3, 8473881), (9, 2824627), (13, 1955511), (31, 820053), (39, 651837), (43, 591201), (93, 273351), (117, 217279), (129, 197067), (163, 155961), (279, 91117), (387, 65689), (403, 63081), (489, 51987), (559, 45477), (1209, 21027), (1333, 19071), (1467, 17329), (1677, 15159), (2119, 11997), (3627, 7009), (3999, 6357), (5031, 5053)]