21681410

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{881}}^1$

素因数の和:1018

約数の個数: 32

約数和(自身を含む): 41150592

約数和(自身を除く): 19469182

約数列:

[1, 2, 5, 10, 23, 46, 107, 115, 214, 230, 535, 881, 1070, 1762, 2461, 4405, 4922, 8810, 12305, 20263, 24610, 40526, 94267, 101315, 188534, 202630, 471335, 942670, 2168141, 4336282, 10840705, 21681410]

約数ペア:

[(1, 21681410), (2, 10840705), (5, 4336282), (10, 2168141), (23, 942670), (46, 471335), (107, 202630), (115, 188534), (214, 101315), (230, 94267), (535, 40526), (881, 24610), (1070, 20263), (1762, 12305), (2461, 8810), (4405, 4922)]