21163702

素因数分解:

$2^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2351}}^1$

素因数の和:3003

約数の個数: 16

約数和(自身を含む): 36352512

約数和(自身を除く): 15188810

約数列:

[1, 2, 7, 14, 643, 1286, 2351, 4501, 4702, 9002, 16457, 32914, 1511693, 3023386, 10581851, 21163702]

約数ペア:

[(1, 21163702), (2, 10581851), (7, 3023386), (14, 1511693), (643, 32914), (1286, 16457), (2351, 9002), (4501, 4702)]