21000967215

素因数分解:

$3^1\times 5^1\times {\mathrm{4721}}^1\times {\mathrm{296561}}^1$

素因数の和:301290

約数の個数: 16

約数和(自身を含む): 33608778336

約数和(自身を除く): 12607811121

約数列:

[1, 3, 5, 15, 4721, 14163, 23605, 70815, 296561, 889683, 1482805, 4448415, 1400064481, 4200193443, 7000322405, 21000967215]

約数ペア:

[(1, 21000967215), (3, 7000322405), (5, 4200193443), (15, 1400064481), (4721, 4448415), (14163, 1482805), (23605, 889683), (70815, 296561)]