21678146

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 38216448

約数和(自身を除く): 16538302

約数列:

[1, 2, 7, 14, 71, 113, 142, 193, 226, 386, 497, 791, 994, 1351, 1582, 2702, 8023, 13703, 16046, 21809, 27406, 43618, 56161, 95921, 112322, 152663, 191842, 305326, 1548439, 3096878, 10839073, 21678146]

約数ペア:

[(1, 21678146), (2, 10839073), (7, 3096878), (14, 1548439), (71, 305326), (113, 191842), (142, 152663), (193, 112322), (226, 95921), (386, 56161), (497, 43618), (791, 27406), (994, 21809), (1351, 16046), (1582, 13703), (2702, 8023)]