20730185

素因数分解:

$5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{443}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 29154816

約数和(自身を除く): 8424631

約数列:

[1, 5, 7, 35, 49, 191, 245, 443, 955, 1337, 2215, 3101, 6685, 9359, 15505, 21707, 46795, 84613, 108535, 423065, 592291, 2961455, 4146037, 20730185]

約数ペア:

[(1, 20730185), (5, 4146037), (7, 2961455), (35, 592291), (49, 423065), (191, 108535), (245, 84613), (443, 46795), (955, 21707), (1337, 15505), (2215, 9359), (3101, 6685)]