21354230

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{937}}^1$

素因数の和:1040

約数の個数: 32

約数和(自身を含む): 40116384

約数和(自身を除く): 18762154

約数列:

[1, 2, 5, 10, 43, 53, 86, 106, 215, 265, 430, 530, 937, 1874, 2279, 4558, 4685, 9370, 11395, 22790, 40291, 49661, 80582, 99322, 201455, 248305, 402910, 496610, 2135423, 4270846, 10677115, 21354230]

約数ペア:

[(1, 21354230), (2, 10677115), (5, 4270846), (10, 2135423), (43, 496610), (53, 402910), (86, 248305), (106, 201455), (215, 99322), (265, 80582), (430, 49661), (530, 40291), (937, 22790), (1874, 11395), (2279, 9370), (4558, 4685)]