20878306

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{2357}}^1$

素因数の和:2505

約数の個数: 16

約数和(自身を含む): 32370624

約数和(自身を除く): 11492318

約数列:

[1, 2, 43, 86, 103, 206, 2357, 4429, 4714, 8858, 101351, 202702, 242771, 485542, 10439153, 20878306]

約数ペア:

[(1, 20878306), (2, 10439153), (43, 485542), (86, 242771), (103, 202702), (206, 101351), (2357, 8858), (4429, 4714)]