21256317

素因数分解:

$3^3\times {\mathrm{113}}^1\times {\mathrm{6967}}^1$

素因数の和:7089

約数の個数: 16

約数和(自身を含む): 31774080

約数和(自身を除く): 10517763

約数列:

[1, 3, 9, 27, 113, 339, 1017, 3051, 6967, 20901, 62703, 188109, 787271, 2361813, 7085439, 21256317]

約数ペア:

[(1, 21256317), (3, 7085439), (9, 2361813), (27, 787271), (113, 188109), (339, 62703), (1017, 20901), (3051, 6967)]