21061557

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11197}}^1$

素因数の和:11233

約数の個数: 24

約数和(自身を含む): 34937760

約数和(自身を除く): 13876203

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 11197, 33591, 100773, 123167, 212743, 369501, 638229, 1108503, 1914687, 2340173, 7020519, 21061557]

約数ペア:

[(1, 21061557), (3, 7020519), (9, 2340173), (11, 1914687), (19, 1108503), (33, 638229), (57, 369501), (99, 212743), (171, 123167), (209, 100773), (627, 33591), (1881, 11197)]