21639554

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{1619}}^1$

素因数の和:1825

約数の個数: 16

約数和(自身を含む): 33475680

約数和(自身を除く): 11836126

約数列:

[1, 2, 41, 82, 163, 326, 1619, 3238, 6683, 13366, 66379, 132758, 263897, 527794, 10819777, 21639554]

約数ペア:

[(1, 21639554), (2, 10819777), (41, 527794), (82, 263897), (163, 132758), (326, 66379), (1619, 13366), (3238, 6683)]