20690631

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1987}}^1$

素因数の和:2095

約数の個数: 24

約数和(自身を含む): 32563440

約数和(自身を除く): 11872809

約数列:

[1, 3, 9, 13, 39, 89, 117, 267, 801, 1157, 1987, 3471, 5961, 10413, 17883, 25831, 77493, 176843, 232479, 530529, 1591587, 2298959, 6896877, 20690631]

約数ペア:

[(1, 20690631), (3, 6896877), (9, 2298959), (13, 1591587), (39, 530529), (89, 232479), (117, 176843), (267, 77493), (801, 25831), (1157, 17883), (1987, 10413), (3471, 5961)]