221409710

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{81701}}^1$

素因数の和:81979

約数の個数: 16

約数和(自身を含む): 400012992

約数和(自身を除く): 178603282

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 81701, 163402, 408505, 817010, 22140971, 44281942, 110704855, 221409710]

約数ペア:

[(1, 221409710), (2, 110704855), (5, 44281942), (10, 22140971), (271, 817010), (542, 408505), (1355, 163402), (2710, 81701)]