1721225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{569}}^1$

素因数の和:601

約数の個数: 18

約数和(自身を含む): 2350110

約数和(自身を除く): 628885

約数列:

[1, 5, 11, 25, 55, 121, 275, 569, 605, 2845, 3025, 6259, 14225, 31295, 68849, 156475, 344245, 1721225]

約数ペア:

[(1, 1721225), (5, 344245), (11, 156475), (25, 68849), (55, 31295), (121, 14225), (275, 6259), (569, 3025), (605, 2845)]