20764278

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{18911}}^1$

素因数の和:18980

約数の個数: 24

約数和(自身を含む): 45729216

約数和(自身を除く): 24964938

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 549, 1098, 18911, 37822, 56733, 113466, 170199, 340398, 1153571, 2307142, 3460713, 6921426, 10382139, 20764278]

約数ペア:

[(1, 20764278), (2, 10382139), (3, 6921426), (6, 3460713), (9, 2307142), (18, 1153571), (61, 340398), (122, 170199), (183, 113466), (366, 56733), (549, 37822), (1098, 18911)]