20951697

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{13103}}^1$

素因数の和:13160

約数の個数: 16

約数和(自身を含む): 30820608

約数和(自身を除く): 9868911

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 13103, 39309, 170339, 511017, 537223, 1611669, 6983899, 20951697]

約数ペア:

[(1, 20951697), (3, 6983899), (13, 1611669), (39, 537223), (41, 511017), (123, 170339), (533, 39309), (1599, 13103)]