201212121605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{7450921}}^1$

素因数の和:7451428

約数の個数: 16

約数和(自身を含む): 263941460928

約数和(自身を除く): 62729339323

約数列:

[1, 5, 11, 55, 491, 2455, 5401, 27005, 7450921, 37254605, 81960131, 409800655, 3658402211, 18292011055, 40242424321, 201212121605]

約数ペア:

[(1, 201212121605), (5, 40242424321), (11, 18292011055), (55, 3658402211), (491, 409800655), (2455, 81960131), (5401, 37254605), (27005, 7450921)]