18617151

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 11035329

約数列:

[1, 3, 7, 21, 43, 53, 129, 159, 301, 371, 389, 903, 1113, 1167, 2279, 2723, 6837, 8169, 15953, 16727, 20617, 47859, 50181, 61851, 117089, 144319, 351267, 432957, 886531, 2659593, 6205717, 18617151]

約数ペア:

[(1, 18617151), (3, 6205717), (7, 2659593), (21, 886531), (43, 432957), (53, 351267), (129, 144319), (159, 117089), (301, 61851), (371, 50181), (389, 47859), (903, 20617), (1113, 16727), (1167, 15953), (2279, 8169), (2723, 6837)]