21073515

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12889}}^1$

素因数の和:13006

約数の個数: 16

約数和(自身を含む): 34029600

約数和(自身を除く): 12956085

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 12889, 38667, 64445, 193335, 1404901, 4214703, 7024505, 21073515]

約数ペア:

[(1, 21073515), (3, 7024505), (5, 4214703), (15, 1404901), (109, 193335), (327, 64445), (545, 38667), (1635, 12889)]