1221225

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 2127840

約数和(自身を除く): 906615

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 857, 1425, 2571, 4285, 12855, 16283, 21425, 48849, 64275, 81415, 244245, 407075, 1221225]

約数ペア:

[(1, 1221225), (3, 407075), (5, 244245), (15, 81415), (19, 64275), (25, 48849), (57, 21425), (75, 16283), (95, 12855), (285, 4285), (475, 2571), (857, 1425)]