20008251

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 29652480

約数和(自身を除く): 9644229

約数列:

[1, 3, 9, 79, 107, 237, 263, 321, 711, 789, 963, 2367, 8453, 20777, 25359, 28141, 62331, 76077, 84423, 186993, 253269, 2223139, 6669417, 20008251]

約数ペア:

[(1, 20008251), (3, 6669417), (9, 2223139), (79, 253269), (107, 186993), (237, 84423), (263, 76077), (321, 62331), (711, 28141), (789, 25359), (963, 20777), (2367, 8453)]