21404812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1627}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 45948672

約数和(自身を除く): 24543860

約数列:

[1, 2, 4, 11, 13, 22, 23, 26, 44, 46, 52, 92, 143, 253, 286, 299, 506, 572, 598, 1012, 1196, 1627, 3254, 3289, 6508, 6578, 13156, 17897, 21151, 35794, 37421, 42302, 71588, 74842, 84604, 149684, 232661, 411631, 465322, 486473, 823262, 930644, 972946, 1646524, 1945892, 5351203, 10702406, 21404812]

約数ペア:

[(1, 21404812), (2, 10702406), (4, 5351203), (11, 1945892), (13, 1646524), (22, 972946), (23, 930644), (26, 823262), (44, 486473), (46, 465322), (52, 411631), (92, 232661), (143, 149684), (253, 84604), (286, 74842), (299, 71588), (506, 42302), (572, 37421), (598, 35794), (1012, 21151), (1196, 17897), (1627, 13156), (3254, 6578), (3289, 6508)]