18918518

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:568

約数の個数: 24

約数和(自身を含む): 30636144

約数和(自身を除く): 11717626

約数列:

[1, 2, 17, 34, 71, 142, 289, 461, 578, 922, 1207, 2414, 7837, 15674, 20519, 32731, 41038, 65462, 133229, 266458, 556427, 1112854, 9459259, 18918518]

約数ペア:

[(1, 18918518), (2, 9459259), (17, 1112854), (34, 556427), (71, 266458), (142, 133229), (289, 65462), (461, 41038), (578, 32731), (922, 20519), (1207, 15674), (2414, 7837)]