20211568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97171}}^1$

素因数の和:97192

約数の個数: 20

約数和(自身を含む): 42172648

約数和(自身を除く): 21961080

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 97171, 194342, 388684, 777368, 1263223, 1554736, 2526446, 5052892, 10105784, 20211568]

約数ペア:

[(1, 20211568), (2, 10105784), (4, 5052892), (8, 2526446), (13, 1554736), (16, 1263223), (26, 777368), (52, 388684), (104, 194342), (208, 97171)]