20528529

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2801}}^1$

素因数の和:3160

約数の個数: 16

約数和(自身を含む): 31382400

約数和(自身を除く): 10853871

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 2801, 7329, 8403, 19607, 58821, 977549, 2932647, 6842843, 20528529]

約数ペア:

[(1, 20528529), (3, 6842843), (7, 2932647), (21, 977549), (349, 58821), (1047, 19607), (2443, 8403), (2801, 7329)]