21577703

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{601}}^1$

素因数の和:854

約数の個数: 16

約数和(自身を含む): 25890816

約数和(自身を除く): 4313113

約数列:

[1, 7, 23, 161, 223, 601, 1561, 4207, 5129, 13823, 35903, 96761, 134023, 938161, 3082529, 21577703]

約数ペア:

[(1, 21577703), (7, 3082529), (23, 938161), (161, 134023), (223, 96761), (601, 35903), (1561, 13823), (4207, 5129)]