20736464

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10891}}^1$

素因数の和:10923

約数の個数: 40

約数和(自身を含む): 48621888

約数和(自身を除く): 27885424

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 10891, 21782, 43564, 76237, 87128, 152474, 174256, 185147, 304948, 370294, 609896, 740588, 1219792, 1296029, 1481176, 2592058, 2962352, 5184116, 10368232, 20736464]

約数ペア:

[(1, 20736464), (2, 10368232), (4, 5184116), (7, 2962352), (8, 2592058), (14, 1481176), (16, 1296029), (17, 1219792), (28, 740588), (34, 609896), (56, 370294), (68, 304948), (112, 185147), (119, 174256), (136, 152474), (238, 87128), (272, 76237), (476, 43564), (952, 21782), (1904, 10891)]