20990322

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{31517}}^1$

素因数の和:31562

約数の個数: 24

約数和(自身を含む): 46709676

約数和(自身を除く): 25719354

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666, 31517, 63034, 94551, 189102, 283653, 567306, 1166129, 2332258, 3498387, 6996774, 10495161, 20990322]

約数ペア:

[(1, 20990322), (2, 10495161), (3, 6996774), (6, 3498387), (9, 2332258), (18, 1166129), (37, 567306), (74, 283653), (111, 189102), (222, 94551), (333, 63034), (666, 31517)]