18640524

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{53}}^2\times {\mathrm{79}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 51304960

約数和(自身を除く): 32664436

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 53, 79, 84, 106, 158, 159, 212, 237, 316, 318, 371, 474, 553, 636, 742, 948, 1106, 1113, 1484, 1659, 2212, 2226, 2809, 3318, 4187, 4452, 5618, 6636, 8374, 8427, 11236, 12561, 16748, 16854, 19663, 25122, 29309, 33708, 39326, 50244, 58618, 58989, 78652, 87927, 117236, 117978, 175854, 221911, 235956, 351708, 443822, 665733, 887644, 1331466, 1553377, 2662932, 3106754, 4660131, 6213508, 9320262, 18640524]

約数ペア:

[(1, 18640524), (2, 9320262), (3, 6213508), (4, 4660131), (6, 3106754), (7, 2662932), (12, 1553377), (14, 1331466), (21, 887644), (28, 665733), (42, 443822), (53, 351708), (79, 235956), (84, 221911), (106, 175854), (158, 117978), (159, 117236), (212, 87927), (237, 78652), (316, 58989), (318, 58618), (371, 50244), (474, 39326), (553, 33708), (636, 29309), (742, 25122), (948, 19663), (1106, 16854), (1113, 16748), (1484, 12561), (1659, 11236), (2212, 8427), (2226, 8374), (2809, 6636), (3318, 5618), (4187, 4452)]