21297957

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{2333}}^1$

素因数の和:2532

約数の個数: 16

約数和(自身を含む): 30248640

約数和(自身を除く): 8950683

約数列:

[1, 3, 17, 51, 179, 537, 2333, 3043, 6999, 9129, 39661, 118983, 417607, 1252821, 7099319, 21297957]

約数ペア:

[(1, 21297957), (3, 7099319), (17, 1252821), (51, 417607), (179, 118983), (537, 39661), (2333, 9129), (3043, 6999)]