21873878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1\times {\mathrm{1069}}^1$

素因数の和:1871

約数の個数: 16

約数和(自身を含む): 35412720

約数和(自身を除く): 13538842

約数列:

[1, 2, 13, 26, 787, 1069, 1574, 2138, 10231, 13897, 20462, 27794, 841303, 1682606, 10936939, 21873878]

約数ペア:

[(1, 21873878), (2, 10936939), (13, 1682606), (26, 841303), (787, 27794), (1069, 20462), (1574, 13897), (2138, 10231)]