20291271

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 17448249

約数列:

[1, 3, 7, 11, 13, 21, 29, 33, 39, 77, 87, 91, 143, 203, 231, 233, 273, 319, 377, 429, 609, 699, 957, 1001, 1131, 1631, 2233, 2563, 2639, 3003, 3029, 4147, 4893, 6699, 6757, 7689, 7917, 9087, 12441, 17941, 20271, 21203, 29029, 33319, 47299, 53823, 63609, 74327, 87087, 87841, 99957, 141897, 222981, 233233, 263523, 520289, 614887, 699699, 966251, 1560867, 1844661, 2898753, 6763757, 20291271]

約数ペア:

[(1, 20291271), (3, 6763757), (7, 2898753), (11, 1844661), (13, 1560867), (21, 966251), (29, 699699), (33, 614887), (39, 520289), (77, 263523), (87, 233233), (91, 222981), (143, 141897), (203, 99957), (231, 87841), (233, 87087), (273, 74327), (319, 63609), (377, 53823), (429, 47299), (609, 33319), (699, 29029), (957, 21203), (1001, 20271), (1131, 17941), (1631, 12441), (2233, 9087), (2563, 7917), (2639, 7689), (3003, 6757), (3029, 6699), (4147, 4893)]