20638563

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{16903}}^1$

素因数の和:16954

約数の個数: 16

約数和(自身を含む): 30832896

約数和(自身を除く): 10194333

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 16903, 50709, 185933, 557799, 625411, 1876233, 6879521, 20638563]

約数ペア:

[(1, 20638563), (3, 6879521), (11, 1876233), (33, 625411), (37, 557799), (111, 185933), (407, 50709), (1221, 16903)]