20449093

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{809}}^1$

素因数の和:996

約数の個数: 16

約数和(自身を含む): 24572160

約数和(自身を除く): 4123067

約数列:

[1, 7, 23, 157, 161, 809, 1099, 3611, 5663, 18607, 25277, 127013, 130249, 889091, 2921299, 20449093]

約数ペア:

[(1, 20449093), (7, 2921299), (23, 889091), (157, 130249), (161, 127013), (809, 25277), (1099, 18607), (3611, 5663)]