21310671

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^2$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 30429696

約数和(自身を除く): 9119025

約数列:

[1, 3, 31, 43, 73, 93, 129, 219, 1333, 2263, 3139, 3999, 5329, 6789, 9417, 15987, 97309, 165199, 229147, 291927, 495597, 687441, 7103557, 21310671]

約数ペア:

[(1, 21310671), (3, 7103557), (31, 687441), (43, 495597), (73, 291927), (93, 229147), (129, 165199), (219, 97309), (1333, 15987), (2263, 9417), (3139, 6789), (3999, 5329)]