21654306

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 48941568

約数和(自身を除く): 27287262

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 151, 186, 257, 279, 302, 453, 514, 558, 771, 906, 1359, 1542, 2313, 2718, 4626, 4681, 7967, 9362, 14043, 15934, 23901, 28086, 38807, 42129, 47802, 71703, 77614, 84258, 116421, 143406, 232842, 349263, 698526, 1203017, 2406034, 3609051, 7218102, 10827153, 21654306]

約数ペア:

[(1, 21654306), (2, 10827153), (3, 7218102), (6, 3609051), (9, 2406034), (18, 1203017), (31, 698526), (62, 349263), (93, 232842), (151, 143406), (186, 116421), (257, 84258), (279, 77614), (302, 71703), (453, 47802), (514, 42129), (558, 38807), (771, 28086), (906, 23901), (1359, 15934), (1542, 14043), (2313, 9362), (2718, 7967), (4626, 4681)]