20728593

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2221}}^1$

素因数の和:2305

約数の個数: 24

約数和(自身を含む): 32236776

約数和(自身を除く): 11508183

約数列:

[1, 3, 9, 17, 51, 61, 153, 183, 549, 1037, 2221, 3111, 6663, 9333, 19989, 37757, 113271, 135481, 339813, 406443, 1219329, 2303177, 6909531, 20728593]

約数ペア:

[(1, 20728593), (3, 6909531), (9, 2303177), (17, 1219329), (51, 406443), (61, 339813), (153, 135481), (183, 113271), (549, 37757), (1037, 19989), (2221, 9333), (3111, 6663)]