21938661

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{15331}}^1$

素因数の和:15393

約数の個数: 16

約数和(自身を含む): 33117120

約数和(自身を除く): 11178459

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 15331, 45993, 137979, 413937, 812543, 2437629, 7312887, 21938661]

約数ペア:

[(1, 21938661), (3, 7312887), (9, 2437629), (27, 812543), (53, 413937), (159, 137979), (477, 45993), (1431, 15331)]