291211986

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{20627}}^1$

素因数の和:20826

約数の個数: 32

約数和(自身を含む): 630721728

約数和(自身を除く): 339509742

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 181, 362, 543, 1086, 2353, 4706, 7059, 14118, 20627, 41254, 61881, 123762, 268151, 536302, 804453, 1608906, 3733487, 7466974, 11200461, 22400922, 48535331, 97070662, 145605993, 291211986]

約数ペア:

[(1, 291211986), (2, 145605993), (3, 97070662), (6, 48535331), (13, 22400922), (26, 11200461), (39, 7466974), (78, 3733487), (181, 1608906), (362, 804453), (543, 536302), (1086, 268151), (2353, 123762), (4706, 61881), (7059, 41254), (14118, 20627)]