21993620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{99971}}^1$

素因数の和:99991

約数の個数: 24

約数和(自身を含む): 50385888

約数和(自身を除く): 28392268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 99971, 199942, 399884, 499855, 999710, 1099681, 1999420, 2199362, 4398724, 5498405, 10996810, 21993620]

約数ペア:

[(1, 21993620), (2, 10996810), (4, 5498405), (5, 4398724), (10, 2199362), (11, 1999420), (20, 1099681), (22, 999710), (44, 499855), (55, 399884), (110, 199942), (220, 99971)]