19896409

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 22852368

約数和(自身を除く): 2955959

約数列:

[1, 13, 17, 197, 221, 457, 2561, 3349, 5941, 7769, 43537, 90029, 100997, 1170377, 1530493, 19896409]

約数ペア:

[(1, 19896409), (13, 1530493), (17, 1170377), (197, 100997), (221, 90029), (457, 43537), (2561, 7769), (3349, 5941)]