18878664

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1091}}^1$

素因数の和:1210

約数の個数: 64

約数和(自身を含む): 54512640

約数和(自身を除く): 35633976

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 103, 168, 206, 309, 412, 618, 721, 824, 1091, 1236, 1442, 2163, 2182, 2472, 2884, 3273, 4326, 4364, 5768, 6546, 7637, 8652, 8728, 13092, 15274, 17304, 22911, 26184, 30548, 45822, 61096, 91644, 112373, 183288, 224746, 337119, 449492, 674238, 786611, 898984, 1348476, 1573222, 2359833, 2696952, 3146444, 4719666, 6292888, 9439332, 18878664]

約数ペア:

[(1, 18878664), (2, 9439332), (3, 6292888), (4, 4719666), (6, 3146444), (7, 2696952), (8, 2359833), (12, 1573222), (14, 1348476), (21, 898984), (24, 786611), (28, 674238), (42, 449492), (56, 337119), (84, 224746), (103, 183288), (168, 112373), (206, 91644), (309, 61096), (412, 45822), (618, 30548), (721, 26184), (824, 22911), (1091, 17304), (1236, 15274), (1442, 13092), (2163, 8728), (2182, 8652), (2472, 7637), (2884, 6546), (3273, 5768), (4326, 4364)]