21410140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{62971}}^1$

素因数の和:62997

約数の個数: 24

約数和(自身を含む): 47606832

約数和(自身を除く): 26196692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 62971, 125942, 251884, 314855, 629710, 1070507, 1259420, 2141014, 4282028, 5352535, 10705070, 21410140]

約数ペア:

[(1, 21410140), (2, 10705070), (4, 5352535), (5, 4282028), (10, 2141014), (17, 1259420), (20, 1070507), (34, 629710), (68, 314855), (85, 251884), (170, 125942), (340, 62971)]