2021625515

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1553}}^1\times {\mathrm{2861}}^1$

素因数の和:4439

約数の個数: 32

約数和(自身を含む): 2988752256

約数和(自身を除く): 967126741

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 1553, 2861, 7765, 10871, 14305, 20027, 20189, 37193, 54355, 100135, 100945, 141323, 185965, 260351, 706615, 1301755, 4443133, 22215665, 31101931, 57760729, 155509655, 288803645, 404325103, 2021625515]

約数ペア:

[(1, 2021625515), (5, 404325103), (7, 288803645), (13, 155509655), (35, 57760729), (65, 31101931), (91, 22215665), (455, 4443133), (1553, 1301755), (2861, 706615), (7765, 260351), (10871, 185965), (14305, 141323), (20027, 100945), (20189, 100135), (37193, 54355)]