21535199

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{739}}^1$

素因数の和:950

約数の個数: 16

約数和(自身を含む): 25858560

約数和(自身を除く): 4323361

約数列:

[1, 7, 23, 161, 181, 739, 1267, 4163, 5173, 16997, 29141, 118979, 133759, 936313, 3076457, 21535199]

約数ペア:

[(1, 21535199), (7, 3076457), (23, 936313), (161, 133759), (181, 118979), (739, 29141), (1267, 16997), (4163, 5173)]