19290427

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{457}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 22159872

約数和(自身を除く): 2869445

約数列:

[1, 13, 17, 191, 221, 457, 2483, 3247, 5941, 7769, 42211, 87287, 100997, 1134731, 1483879, 19290427]

約数ペア:

[(1, 19290427), (13, 1483879), (17, 1134731), (191, 100997), (221, 87287), (457, 42211), (2483, 7769), (3247, 5941)]