260025927

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{2389}}^1$

素因数の和:2543

約数の個数: 32

約数和(自身を含む): 407485440

約数和(自身を除く): 147459513

約数列:

[1, 3, 7, 21, 71, 73, 213, 219, 497, 511, 1491, 1533, 2389, 5183, 7167, 15549, 16723, 36281, 50169, 108843, 169619, 174397, 508857, 523191, 1187333, 1220779, 3561999, 3662337, 12382187, 37146561, 86675309, 260025927]

約数ペア:

[(1, 260025927), (3, 86675309), (7, 37146561), (21, 12382187), (71, 3662337), (73, 3561999), (213, 1220779), (219, 1187333), (497, 523191), (511, 508857), (1491, 174397), (1533, 169619), (2389, 108843), (5183, 50169), (7167, 36281), (15549, 16723)]