19893843

素因数分解:

$3^4\times {\mathrm{449}}^1\times {\mathrm{547}}^1$

素因数の和:1008

約数の個数: 20

約数和(自身を含む): 29838600

約数和(自身を除く): 9944757

約数列:

[1, 3, 9, 27, 81, 449, 547, 1347, 1641, 4041, 4923, 12123, 14769, 36369, 44307, 245603, 736809, 2210427, 6631281, 19893843]

約数ペア:

[(1, 19893843), (3, 6631281), (9, 2210427), (27, 736809), (81, 245603), (449, 44307), (547, 36369), (1347, 14769), (1641, 12123), (4041, 4923)]