21247837

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:612

約数の個数: 16

約数和(自身を含む): 24071040

約数和(自身を除く): 2823203

約数列:

[1, 13, 23, 179, 299, 397, 2327, 4117, 5161, 9131, 53521, 71063, 118703, 923819, 1634449, 21247837]

約数ペア:

[(1, 21247837), (13, 1634449), (23, 923819), (179, 118703), (299, 71063), (397, 53521), (2327, 9131), (4117, 5161)]