12887215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4421}}^1$

素因数の和:4490

約数の個数: 16

約数和(自身を含む): 17192736

約数和(自身を除く): 4305521

約数列:

[1, 5, 11, 53, 55, 265, 583, 2915, 4421, 22105, 48631, 234313, 243155, 1171565, 2577443, 12887215]

約数ペア:

[(1, 12887215), (5, 2577443), (11, 1171565), (53, 243155), (55, 234313), (265, 48631), (583, 22105), (2915, 4421)]