21136472

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{101}}^2$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 46981680

約数和(自身を除く): 25845208

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 101, 148, 202, 259, 296, 404, 518, 707, 808, 1036, 1414, 2072, 2828, 3737, 5656, 7474, 10201, 14948, 20402, 26159, 29896, 40804, 52318, 71407, 81608, 104636, 142814, 209272, 285628, 377437, 571256, 754874, 1509748, 2642059, 3019496, 5284118, 10568236, 21136472]

約数ペア:

[(1, 21136472), (2, 10568236), (4, 5284118), (7, 3019496), (8, 2642059), (14, 1509748), (28, 754874), (37, 571256), (56, 377437), (74, 285628), (101, 209272), (148, 142814), (202, 104636), (259, 81608), (296, 71407), (404, 52318), (518, 40804), (707, 29896), (808, 26159), (1036, 20402), (1414, 14948), (2072, 10201), (2828, 7474), (3737, 5656)]