21615309

素因数分解:

$3^3\times {\mathrm{449}}^1\times {\mathrm{1783}}^1$

素因数の和:2241

約数の個数: 16

約数和(自身を含む): 32112000

約数和(自身を除く): 10496691

約数列:

[1, 3, 9, 27, 449, 1347, 1783, 4041, 5349, 12123, 16047, 48141, 800567, 2401701, 7205103, 21615309]

約数ペア:

[(1, 21615309), (3, 7205103), (9, 2401701), (27, 800567), (449, 48141), (1347, 16047), (1783, 12123), (4041, 5349)]