21581126

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{90677}}^1$

素因数の和:90703

約数の個数: 16

約数和(自身を含む): 39172896

約数和(自身を除く): 17591770

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 90677, 181354, 634739, 1269478, 1541509, 3083018, 10790563, 21581126]

約数ペア:

[(1, 21581126), (2, 10790563), (7, 3083018), (14, 1541509), (17, 1269478), (34, 634739), (119, 181354), (238, 90677)]