20273253

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 37373952

約数和(自身を除く): 17100699

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 43, 77, 91, 129, 143, 157, 231, 273, 301, 429, 471, 473, 559, 903, 1001, 1099, 1419, 1677, 1727, 2041, 3003, 3297, 3311, 3913, 5181, 6123, 6149, 6751, 9933, 11739, 12089, 14287, 18447, 20253, 22451, 36267, 42861, 43043, 47257, 67353, 74261, 87763, 129129, 141771, 157157, 222783, 263289, 471471, 519827, 614341, 965393, 1559481, 1843023, 2896179, 6757751, 20273253]

約数ペア:

[(1, 20273253), (3, 6757751), (7, 2896179), (11, 1843023), (13, 1559481), (21, 965393), (33, 614341), (39, 519827), (43, 471471), (77, 263289), (91, 222783), (129, 157157), (143, 141771), (157, 129129), (231, 87763), (273, 74261), (301, 67353), (429, 47257), (471, 43043), (473, 42861), (559, 36267), (903, 22451), (1001, 20253), (1099, 18447), (1419, 14287), (1677, 12089), (1727, 11739), (2041, 9933), (3003, 6751), (3297, 6149), (3311, 6123), (3913, 5181)]