18187778

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 32237568

約数和(自身を除く): 14049790

約数列:

[1, 2, 7, 14, 47, 94, 131, 211, 262, 329, 422, 658, 917, 1477, 1834, 2954, 6157, 9917, 12314, 19834, 27641, 43099, 55282, 69419, 86198, 138838, 193487, 386974, 1299127, 2598254, 9093889, 18187778]

約数ペア:

[(1, 18187778), (2, 9093889), (7, 2598254), (14, 1299127), (47, 386974), (94, 193487), (131, 138838), (211, 86198), (262, 69419), (329, 55282), (422, 43099), (658, 27641), (917, 19834), (1477, 12314), (1834, 9917), (2954, 6157)]