20942470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123191}}^1$

素因数の和:123215

約数の個数: 16

約数和(自身を含む): 39914208

約数和(自身を除く): 18971738

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 123191, 246382, 615955, 1231910, 2094247, 4188494, 10471235, 20942470]

約数ペア:

[(1, 20942470), (2, 10471235), (5, 4188494), (10, 2094247), (17, 1231910), (34, 615955), (85, 246382), (170, 123191)]