20516944

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4951}}^1$

素因数の和:5003

約数の個数: 40

約数和(自身を含む): 46667648

約数和(自身を除く): 26150704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 74, 112, 148, 259, 296, 518, 592, 1036, 2072, 4144, 4951, 9902, 19804, 34657, 39608, 69314, 79216, 138628, 183187, 277256, 366374, 554512, 732748, 1282309, 1465496, 2564618, 2930992, 5129236, 10258472, 20516944]

約数ペア:

[(1, 20516944), (2, 10258472), (4, 5129236), (7, 2930992), (8, 2564618), (14, 1465496), (16, 1282309), (28, 732748), (37, 554512), (56, 366374), (74, 277256), (112, 183187), (148, 138628), (259, 79216), (296, 69314), (518, 39608), (592, 34657), (1036, 19804), (2072, 9902), (4144, 4951)]