28580979

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:771

約数の個数: 32

約数和(自身を含む): 45757440

約数和(自身を除く): 17176461

約数列:

[1, 3, 7, 21, 29, 71, 87, 203, 213, 497, 609, 661, 1491, 1983, 2059, 4627, 6177, 13881, 14413, 19169, 43239, 46931, 57507, 134183, 140793, 328517, 402549, 985551, 1360999, 4082997, 9526993, 28580979]

約数ペア:

[(1, 28580979), (3, 9526993), (7, 4082997), (21, 1360999), (29, 985551), (71, 402549), (87, 328517), (203, 140793), (213, 134183), (497, 57507), (609, 46931), (661, 43239), (1491, 19169), (1983, 14413), (2059, 13881), (4627, 6177)]