21770475

素因数分解:

$3^1\times 5^2\times {\mathrm{281}}^1\times {\mathrm{1033}}^1$

素因数の和:1327

約数の個数: 24

約数和(自身を含む): 36156912

約数和(自身を除く): 14386437

約数列:

[1, 3, 5, 15, 25, 75, 281, 843, 1033, 1405, 3099, 4215, 5165, 7025, 15495, 21075, 25825, 77475, 290273, 870819, 1451365, 4354095, 7256825, 21770475]

約数ペア:

[(1, 21770475), (3, 7256825), (5, 4354095), (15, 1451365), (25, 870819), (75, 290273), (281, 77475), (843, 25825), (1033, 21075), (1405, 15495), (3099, 7025), (4215, 5165)]