18474939

素因数分解:

$3^3\times 7^1\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 31488000

約数和(自身を除く): 13013061

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 239, 409, 717, 1227, 1673, 2151, 2863, 3681, 5019, 6453, 8589, 11043, 15057, 25767, 45171, 77301, 97751, 293253, 684257, 879759, 2052771, 2639277, 6158313, 18474939]

約数ペア:

[(1, 18474939), (3, 6158313), (7, 2639277), (9, 2052771), (21, 879759), (27, 684257), (63, 293253), (189, 97751), (239, 77301), (409, 45171), (717, 25767), (1227, 15057), (1673, 11043), (2151, 8589), (2863, 6453), (3681, 5019)]