21991122

素因数分解:

$2^1\times 3^3\times {\mathrm{449}}^1\times {\mathrm{907}}^1$

素因数の和:1367

約数の個数: 32

約数和(自身を含む): 49032000

約数和(自身を除く): 27040878

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 449, 898, 907, 1347, 1814, 2694, 2721, 4041, 5442, 8082, 8163, 12123, 16326, 24246, 24489, 48978, 407243, 814486, 1221729, 2443458, 3665187, 7330374, 10995561, 21991122]

約数ペア:

[(1, 21991122), (2, 10995561), (3, 7330374), (6, 3665187), (9, 2443458), (18, 1221729), (27, 814486), (54, 407243), (449, 48978), (898, 24489), (907, 24246), (1347, 16326), (1814, 12123), (2694, 8163), (2721, 8082), (4041, 5442)]