20801868

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 50534400

約数和(自身を除く): 29732532

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 124, 186, 199, 281, 372, 398, 562, 597, 796, 843, 1124, 1194, 1686, 2388, 3372, 6169, 8711, 12338, 17422, 18507, 24676, 26133, 34844, 37014, 52266, 55919, 74028, 104532, 111838, 167757, 223676, 335514, 671028, 1733489, 3466978, 5200467, 6933956, 10400934, 20801868]

約数ペア:

[(1, 20801868), (2, 10400934), (3, 6933956), (4, 5200467), (6, 3466978), (12, 1733489), (31, 671028), (62, 335514), (93, 223676), (124, 167757), (186, 111838), (199, 104532), (281, 74028), (372, 55919), (398, 52266), (562, 37014), (597, 34844), (796, 26133), (843, 24676), (1124, 18507), (1194, 17422), (1686, 12338), (2388, 8711), (3372, 6169)]