290427921

素因数分解:

$3^2\times 7^1\times {\mathrm{1087}}^1\times {\mathrm{4241}}^1$

素因数の和:5341

約数の個数: 24

約数和(自身を含む): 479990784

約数和(自身を除く): 189562863

約数列:

[1, 3, 7, 9, 21, 63, 1087, 3261, 4241, 7609, 9783, 12723, 22827, 29687, 38169, 68481, 89061, 267183, 4609967, 13829901, 32269769, 41489703, 96809307, 290427921]

約数ペア:

[(1, 290427921), (3, 96809307), (7, 41489703), (9, 32269769), (21, 13829901), (63, 4609967), (1087, 267183), (3261, 89061), (4241, 68481), (7609, 38169), (9783, 29687), (12723, 22827)]