20619317

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:548

約数の個数: 16

約数和(自身を含む): 22727232

約数和(自身を除く): 2107915

約数列:

[1, 17, 43, 67, 421, 731, 1139, 2881, 7157, 18103, 28207, 48977, 307751, 479519, 1212901, 20619317]

約数ペア:

[(1, 20619317), (17, 1212901), (43, 479519), (67, 307751), (421, 48977), (731, 28207), (1139, 18103), (2881, 7157)]