51108309

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{42697}}^1$

素因数の和:42729

約数の個数: 24

約数和(自身を含む): 88811840

約数和(自身を除く): 37703531

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 42697, 128091, 298879, 384273, 811243, 896637, 2433729, 2689911, 5678701, 7301187, 17036103, 51108309]

約数ペア:

[(1, 51108309), (3, 17036103), (7, 7301187), (9, 5678701), (19, 2689911), (21, 2433729), (57, 896637), (63, 811243), (133, 384273), (171, 298879), (399, 128091), (1197, 42697)]