21130929

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{11681}}^1$

素因数の和:11757

約数の個数: 16

約数和(自身を含む): 31775040

約数和(自身を除く): 10644111

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 11681, 35043, 105129, 315387, 782627, 2347881, 7043643, 21130929]

約数ペア:

[(1, 21130929), (3, 7043643), (9, 2347881), (27, 782627), (67, 315387), (201, 105129), (603, 35043), (1809, 11681)]