19779291

素因数分解:

$3^2\times 7^2\times {\mathrm{44851}}^1$

素因数の和:44871

約数の個数: 18

約数和(自身を含む): 33235332

約数和(自身を除く): 13456041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 44851, 134553, 313957, 403659, 941871, 2197699, 2825613, 6593097, 19779291]

約数ペア:

[(1, 19779291), (3, 6593097), (7, 2825613), (9, 2197699), (21, 941871), (49, 403659), (63, 313957), (147, 134553), (441, 44851)]