21253665

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{48859}}^1$

素因数の和:48896

約数の個数: 16

約数和(自身を含む): 35179200

約数和(自身を除く): 13925535

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 48859, 146577, 244295, 732885, 1416911, 4250733, 7084555, 21253665]

約数ペア:

[(1, 21253665), (3, 7084555), (5, 4250733), (15, 1416911), (29, 732885), (87, 244295), (145, 146577), (435, 48859)]