20423590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16879}}^1$

素因数の和:16908

約数の個数: 24

約数和(自身を含む): 40410720

約数和(自身を除く): 19987130

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 16879, 33758, 84395, 168790, 185669, 371338, 928345, 1856690, 2042359, 4084718, 10211795, 20423590]

約数ペア:

[(1, 20423590), (2, 10211795), (5, 4084718), (10, 2042359), (11, 1856690), (22, 928345), (55, 371338), (110, 185669), (121, 168790), (242, 84395), (605, 33758), (1210, 16879)]