20167818

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 46811520

約数和(自身を除く): 26643702

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 41, 58, 66, 82, 87, 123, 174, 246, 257, 319, 451, 514, 638, 771, 902, 957, 1189, 1353, 1542, 1914, 2378, 2706, 2827, 3567, 5654, 7134, 7453, 8481, 10537, 13079, 14906, 16962, 21074, 22359, 26158, 31611, 39237, 44718, 63222, 78474, 81983, 115907, 163966, 231814, 245949, 305573, 347721, 491898, 611146, 695442, 916719, 1833438, 3361303, 6722606, 10083909, 20167818]

約数ペア:

[(1, 20167818), (2, 10083909), (3, 6722606), (6, 3361303), (11, 1833438), (22, 916719), (29, 695442), (33, 611146), (41, 491898), (58, 347721), (66, 305573), (82, 245949), (87, 231814), (123, 163966), (174, 115907), (246, 81983), (257, 78474), (319, 63222), (451, 44718), (514, 39237), (638, 31611), (771, 26158), (902, 22359), (957, 21074), (1189, 16962), (1353, 14906), (1542, 13079), (1914, 10537), (2378, 8481), (2706, 7453), (2827, 7134), (3567, 5654)]