20325573

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:359

約数の個数: 40

約数和(自身を含む): 32757120

約数和(自身を除く): 12431547

約数列:

[1, 3, 9, 19, 27, 47, 57, 81, 141, 171, 281, 423, 513, 843, 893, 1269, 1539, 2529, 2679, 3807, 5339, 7587, 8037, 13207, 16017, 22761, 24111, 39621, 48051, 72333, 118863, 144153, 250933, 356589, 432459, 752799, 1069767, 2258397, 6775191, 20325573]

約数ペア:

[(1, 20325573), (3, 6775191), (9, 2258397), (19, 1069767), (27, 752799), (47, 432459), (57, 356589), (81, 250933), (141, 144153), (171, 118863), (281, 72333), (423, 48051), (513, 39621), (843, 24111), (893, 22761), (1269, 16017), (1539, 13207), (2529, 8037), (2679, 7587), (3807, 5339)]