21041241

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{13159}}^1$

素因数の和:13216

約数の個数: 16

約数和(自身を含む): 30952320

約数和(自身を除く): 9911079

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 13159, 39477, 171067, 513201, 539519, 1618557, 7013747, 21041241]

約数ペア:

[(1, 21041241), (3, 7013747), (13, 1618557), (39, 539519), (41, 513201), (123, 171067), (533, 39477), (1599, 13159)]