20638958

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{1097}}^1$

素因数の和:1531

約数の個数: 16

約数和(自身を含む): 32412960

約数和(自身を除く): 11774002

約数列:

[1, 2, 23, 46, 409, 818, 1097, 2194, 9407, 18814, 25231, 50462, 448673, 897346, 10319479, 20638958]

約数ペア:

[(1, 20638958), (2, 10319479), (23, 897346), (46, 448673), (409, 50462), (818, 25231), (1097, 18814), (2194, 9407)]