21952189

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{2311}}^1$

素因数の和:2400

約数の個数: 16

約数和(自身を含む): 26634240

約数和(自身を除く): 4682051

約数列:

[1, 7, 23, 59, 161, 413, 1357, 2311, 9499, 16177, 53153, 136349, 372071, 954443, 3136027, 21952189]

約数ペア:

[(1, 21952189), (7, 3136027), (23, 954443), (59, 372071), (161, 136349), (413, 53153), (1357, 16177), (2311, 9499)]