20660984

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3533}}^1$

素因数の和:3599

約数の個数: 32

約数和(自身を含む): 41983920

約数和(自身を除く): 21322936

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3533, 5848, 7066, 14132, 28264, 60061, 120122, 151919, 240244, 303838, 480488, 607676, 1215352, 2582623, 5165246, 10330492, 20660984]

約数ペア:

[(1, 20660984), (2, 10330492), (4, 5165246), (8, 2582623), (17, 1215352), (34, 607676), (43, 480488), (68, 303838), (86, 240244), (136, 151919), (172, 120122), (344, 60061), (731, 28264), (1462, 14132), (2924, 7066), (3533, 5848)]