18888015

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9059}}^1$

素因数の和:9206

約数の個数: 16

約数和(自身を含む): 30441600

約数和(自身を除く): 11553585

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 9059, 27177, 45295, 135885, 1259201, 3777603, 6296005, 18888015]

約数ペア:

[(1, 18888015), (3, 6296005), (5, 3777603), (15, 1259201), (139, 135885), (417, 45295), (695, 27177), (2085, 9059)]