21091698

素因数分解:

$2^1\times 3^3\times {\mathrm{137}}^1\times {\mathrm{2851}}^1$

素因数の和:2999

約数の個数: 32

約数和(自身を含む): 47229120

約数和(自身を除く): 26137422

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 137, 274, 411, 822, 1233, 2466, 2851, 3699, 5702, 7398, 8553, 17106, 25659, 51318, 76977, 153954, 390587, 781174, 1171761, 2343522, 3515283, 7030566, 10545849, 21091698]

約数ペア:

[(1, 21091698), (2, 10545849), (3, 7030566), (6, 3515283), (9, 2343522), (18, 1171761), (27, 781174), (54, 390587), (137, 153954), (274, 76977), (411, 51318), (822, 25659), (1233, 17106), (2466, 8553), (2851, 7398), (3699, 5702)]