21995985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{12119}}^1$

素因数の和:12149

約数の個数: 24

約数和(自身を含む): 38687040

約数和(自身を除く): 16691055

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 12119, 36357, 60595, 133309, 181785, 399927, 666545, 1466399, 1999635, 4399197, 7331995, 21995985]

約数ペア:

[(1, 21995985), (3, 7331995), (5, 4399197), (11, 1999635), (15, 1466399), (33, 666545), (55, 399927), (121, 181785), (165, 133309), (363, 60595), (605, 36357), (1815, 12119)]