20565018

素因数分解:

$2^1\times 3^2\times {\mathrm{601}}^1\times {\mathrm{1901}}^1$

素因数の和:2510

約数の個数: 24

約数和(自身を含む): 44655156

約数和(自身を除く): 24090138

約数列:

[1, 2, 3, 6, 9, 18, 601, 1202, 1803, 1901, 3606, 3802, 5409, 5703, 10818, 11406, 17109, 34218, 1142501, 2285002, 3427503, 6855006, 10282509, 20565018]

約数ペア:

[(1, 20565018), (2, 10282509), (3, 6855006), (6, 3427503), (9, 2285002), (18, 1142501), (601, 34218), (1202, 17109), (1803, 11406), (1901, 10818), (3606, 5703), (3802, 5409)]