21883905

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3449}}^1$

素因数の和:3510

約数の個数: 32

約数和(自身を含む): 39744000

約数和(自身を除く): 17860095

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 135, 141, 235, 423, 705, 1269, 2115, 3449, 6345, 10347, 17245, 31041, 51735, 93123, 155205, 162103, 465615, 486309, 810515, 1458927, 2431545, 4376781, 7294635, 21883905]

約数ペア:

[(1, 21883905), (3, 7294635), (5, 4376781), (9, 2431545), (15, 1458927), (27, 810515), (45, 486309), (47, 465615), (135, 162103), (141, 155205), (235, 93123), (423, 51735), (705, 31041), (1269, 17245), (2115, 10347), (3449, 6345)]