391027923

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15991}}^1$

素因数の和:16040

約数の個数: 48

約数和(自身を含む): 698530560

約数和(自身を除く): 307502637

約数列:

[1, 3, 9, 11, 13, 19, 33, 39, 57, 99, 117, 143, 171, 209, 247, 429, 627, 741, 1287, 1881, 2223, 2717, 8151, 15991, 24453, 47973, 143919, 175901, 207883, 303829, 527703, 623649, 911487, 1583109, 1870947, 2286713, 2734461, 3342119, 3949777, 6860139, 10026357, 11849331, 20580417, 30079071, 35547993, 43447547, 130342641, 391027923]

約数ペア:

[(1, 391027923), (3, 130342641), (9, 43447547), (11, 35547993), (13, 30079071), (19, 20580417), (33, 11849331), (39, 10026357), (57, 6860139), (99, 3949777), (117, 3342119), (143, 2734461), (171, 2286713), (209, 1870947), (247, 1583109), (429, 911487), (627, 623649), (741, 527703), (1287, 303829), (1881, 207883), (2223, 175901), (2717, 143919), (8151, 47973), (15991, 24453)]