18663762

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 42900480

約数和(自身を除く): 24236718

約数列:

[1, 2, 3, 6, 13, 26, 29, 37, 39, 58, 74, 78, 87, 111, 174, 222, 223, 377, 446, 481, 669, 754, 962, 1073, 1131, 1338, 1443, 2146, 2262, 2886, 2899, 3219, 5798, 6438, 6467, 8251, 8697, 12934, 13949, 16502, 17394, 19401, 24753, 27898, 38802, 41847, 49506, 83694, 84071, 107263, 168142, 214526, 239279, 252213, 321789, 478558, 504426, 643578, 717837, 1435674, 3110627, 6221254, 9331881, 18663762]

約数ペア:

[(1, 18663762), (2, 9331881), (3, 6221254), (6, 3110627), (13, 1435674), (26, 717837), (29, 643578), (37, 504426), (39, 478558), (58, 321789), (74, 252213), (78, 239279), (87, 214526), (111, 168142), (174, 107263), (222, 84071), (223, 83694), (377, 49506), (446, 41847), (481, 38802), (669, 27898), (754, 24753), (962, 19401), (1073, 17394), (1131, 16502), (1338, 13949), (1443, 12934), (2146, 8697), (2262, 8251), (2886, 6467), (2899, 6438), (3219, 5798)]