18690858

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 25373142

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 101, 138, 149, 202, 207, 298, 303, 414, 447, 606, 621, 894, 909, 1242, 1341, 1818, 2323, 2682, 2727, 3427, 4023, 4646, 5454, 6854, 6969, 8046, 10281, 13938, 15049, 20562, 20907, 30098, 30843, 41814, 45147, 61686, 62721, 90294, 92529, 125442, 135441, 185058, 270882, 346127, 406323, 692254, 812646, 1038381, 2076762, 3115143, 6230286, 9345429, 18690858]

約数ペア:

[(1, 18690858), (2, 9345429), (3, 6230286), (6, 3115143), (9, 2076762), (18, 1038381), (23, 812646), (27, 692254), (46, 406323), (54, 346127), (69, 270882), (101, 185058), (138, 135441), (149, 125442), (202, 92529), (207, 90294), (298, 62721), (303, 61686), (414, 45147), (447, 41814), (606, 30843), (621, 30098), (894, 20907), (909, 20562), (1242, 15049), (1341, 13938), (1818, 10281), (2323, 8046), (2682, 6969), (2727, 6854), (3427, 5454), (4023, 4646)]