20525036

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^2\times {\mathrm{197}}^1$

素因数の和:330

約数の個数: 36

約数和(自身を含む): 41945904

約数和(自身を除く): 21420868

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 197, 244, 394, 427, 788, 854, 1379, 1708, 2758, 3721, 5516, 7442, 12017, 14884, 24034, 26047, 48068, 52094, 84119, 104188, 168238, 336476, 733037, 1466074, 2932148, 5131259, 10262518, 20525036]

約数ペア:

[(1, 20525036), (2, 10262518), (4, 5131259), (7, 2932148), (14, 1466074), (28, 733037), (61, 336476), (122, 168238), (197, 104188), (244, 84119), (394, 52094), (427, 48068), (788, 26047), (854, 24034), (1379, 14884), (1708, 12017), (2758, 7442), (3721, 5516)]