21399174

素因数分解:

$2^1\times 3^3\times {\mathrm{53}}^1\times {\mathrm{7477}}^1$

素因数の和:7541

約数の個数: 32

約数和(自身を含む): 48457440

約数和(自身を除く): 27058266

約数列:

[1, 2, 3, 6, 9, 18, 27, 53, 54, 106, 159, 318, 477, 954, 1431, 2862, 7477, 14954, 22431, 44862, 67293, 134586, 201879, 396281, 403758, 792562, 1188843, 2377686, 3566529, 7133058, 10699587, 21399174]

約数ペア:

[(1, 21399174), (2, 10699587), (3, 7133058), (6, 3566529), (9, 2377686), (18, 1188843), (27, 792562), (53, 403758), (54, 396281), (106, 201879), (159, 134586), (318, 67293), (477, 44862), (954, 22431), (1431, 14954), (2862, 7477)]