21704505

素因数分解:

$3^1\times 5^1\times {\mathrm{569}}^1\times {\mathrm{2543}}^1$

素因数の和:3120

約数の個数: 16

約数和(自身を含む): 34801920

約数和(自身を除く): 13097415

約数列:

[1, 3, 5, 15, 569, 1707, 2543, 2845, 7629, 8535, 12715, 38145, 1446967, 4340901, 7234835, 21704505]

約数ペア:

[(1, 21704505), (3, 7234835), (5, 4340901), (15, 1446967), (569, 38145), (1707, 12715), (2543, 8535), (2845, 7629)]