21896524

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{977}}^1$

素因数の和:1425

約数の個数: 24

約数和(自身を含む): 41404608

約数和(自身を除く): 19508084

約数列:

[1, 2, 4, 13, 26, 52, 431, 862, 977, 1724, 1954, 3908, 5603, 11206, 12701, 22412, 25402, 50804, 421087, 842174, 1684348, 5474131, 10948262, 21896524]

約数ペア:

[(1, 21896524), (2, 10948262), (4, 5474131), (13, 1684348), (26, 842174), (52, 421087), (431, 50804), (862, 25402), (977, 22412), (1724, 12701), (1954, 11206), (3908, 5603)]