20642864

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2213}}^1$

素因数の和:2285

約数の個数: 40

約数和(自身を含む): 44474832

約数和(自身を除く): 23831968

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 53, 88, 106, 176, 212, 424, 583, 848, 1166, 2213, 2332, 4426, 4664, 8852, 9328, 17704, 24343, 35408, 48686, 97372, 117289, 194744, 234578, 389488, 469156, 938312, 1290179, 1876624, 2580358, 5160716, 10321432, 20642864]

約数ペア:

[(1, 20642864), (2, 10321432), (4, 5160716), (8, 2580358), (11, 1876624), (16, 1290179), (22, 938312), (44, 469156), (53, 389488), (88, 234578), (106, 194744), (176, 117289), (212, 97372), (424, 48686), (583, 35408), (848, 24343), (1166, 17704), (2213, 9328), (2332, 8852), (4426, 4664)]