20501307

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 30466800

約数和(自身を除く): 9965493

約数列:

[1, 3, 9, 61, 107, 183, 321, 349, 549, 963, 1047, 3141, 6527, 19581, 21289, 37343, 58743, 63867, 112029, 191601, 336087, 2277923, 6833769, 20501307]

約数ペア:

[(1, 20501307), (3, 6833769), (9, 2277923), (61, 336087), (107, 191601), (183, 112029), (321, 63867), (349, 58743), (549, 37343), (963, 21289), (1047, 19581), (3141, 6527)]