21640137

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{739}}^1$

素因数の和:1012

約数の個数: 16

約数和(自身を含む): 29694720

約数和(自身を除く): 8054583

約数列:

[1, 3, 43, 129, 227, 681, 739, 2217, 9761, 29283, 31777, 95331, 167753, 503259, 7213379, 21640137]

約数ペア:

[(1, 21640137), (3, 7213379), (43, 503259), (129, 167753), (227, 95331), (681, 31777), (739, 29283), (2217, 9761)]