17939853

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 27678720

約数和(自身を除く): 9738867

約数列:

[1, 3, 9, 27, 47, 67, 141, 201, 211, 423, 603, 633, 1269, 1809, 1899, 3149, 5697, 9447, 9917, 14137, 28341, 29751, 42411, 85023, 89253, 127233, 267759, 381699, 664439, 1993317, 5979951, 17939853]

約数ペア:

[(1, 17939853), (3, 5979951), (9, 1993317), (27, 664439), (47, 381699), (67, 267759), (141, 127233), (201, 89253), (211, 85023), (423, 42411), (603, 29751), (633, 28341), (1269, 14137), (1809, 9917), (1899, 9447), (3149, 5697)]