20942959

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 23040000

約数和(自身を除く): 2097041

約数列:

[1, 19, 29, 191, 199, 551, 3629, 3781, 5539, 5771, 38009, 105241, 109649, 722171, 1102261, 20942959]

約数ペア:

[(1, 20942959), (19, 1102261), (29, 722171), (191, 109649), (199, 105241), (551, 38009), (3629, 5771), (3781, 5539)]