19973177

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{947}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 24026112

約数和(自身を除く): 4052935

約数列:

[1, 7, 23, 131, 161, 917, 947, 3013, 6629, 21091, 21781, 124057, 152467, 868399, 2853311, 19973177]

約数ペア:

[(1, 19973177), (7, 2853311), (23, 868399), (131, 152467), (161, 124057), (917, 21781), (947, 21091), (3013, 6629)]