289142973

素因数分解:

$3^3\times 7^2\times {\mathrm{218551}}^1$

素因数の和:218574

約数の個数: 24

約数和(自身を含む): 498298560

約数和(自身を除く): 209155587

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 218551, 655653, 1529857, 1966959, 4589571, 5900877, 10708999, 13768713, 32126997, 41306139, 96380991, 289142973]

約数ペア:

[(1, 289142973), (3, 96380991), (7, 41306139), (9, 32126997), (21, 13768713), (27, 10708999), (49, 5900877), (63, 4589571), (147, 1966959), (189, 1529857), (441, 655653), (1323, 218551)]