21231493

素因数分解:

${\mathrm{19}}^2\times {\mathrm{103}}^1\times {\mathrm{571}}^1$

素因数の和:712

約数の個数: 12

約数和(自身を含む): 22664928

約数和(自身を除く): 1433435

約数列:

[1, 19, 103, 361, 571, 1957, 10849, 37183, 58813, 206131, 1117447, 21231493]

約数ペア:

[(1, 21231493), (19, 1117447), (103, 206131), (361, 58813), (571, 37183), (1957, 10849)]