3970215

素因数分解:

$3^4\times 5^1\times {\mathrm{9803}}^1$

素因数の和:9820

約数の個数: 20

約数和(自身を含む): 7117704

約数和(自身を除く): 3147489

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 9803, 29409, 49015, 88227, 147045, 264681, 441135, 794043, 1323405, 3970215]

約数ペア:

[(1, 3970215), (3, 1323405), (5, 794043), (9, 441135), (15, 264681), (27, 147045), (45, 88227), (81, 49015), (135, 29409), (405, 9803)]