16564257

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:307

約数の個数: 40

約数和(自身を含む): 26716800

約数和(自身を除く): 10152543

約数列:

[1, 3, 9, 19, 27, 47, 57, 81, 141, 171, 229, 423, 513, 687, 893, 1269, 1539, 2061, 2679, 3807, 4351, 6183, 8037, 10763, 13053, 18549, 24111, 32289, 39159, 72333, 96867, 117477, 204497, 290601, 352431, 613491, 871803, 1840473, 5521419, 16564257]

約数ペア:

[(1, 16564257), (3, 5521419), (9, 1840473), (19, 871803), (27, 613491), (47, 352431), (57, 290601), (81, 204497), (141, 117477), (171, 96867), (229, 72333), (423, 39159), (513, 32289), (687, 24111), (893, 18549), (1269, 13053), (1539, 10763), (2061, 8037), (2679, 6183), (3807, 4351)]