20807838

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:401

約数の個数: 48

約数和(自身を含む): 46831200

約数和(自身を除く): 26023362

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 157, 199, 222, 314, 333, 398, 471, 597, 666, 942, 1194, 1413, 1791, 2826, 3582, 5809, 7363, 11618, 14726, 17427, 22089, 31243, 34854, 44178, 52281, 62486, 66267, 93729, 104562, 132534, 187458, 281187, 562374, 1155991, 2311982, 3467973, 6935946, 10403919, 20807838]

約数ペア:

[(1, 20807838), (2, 10403919), (3, 6935946), (6, 3467973), (9, 2311982), (18, 1155991), (37, 562374), (74, 281187), (111, 187458), (157, 132534), (199, 104562), (222, 93729), (314, 66267), (333, 62486), (398, 52281), (471, 44178), (597, 34854), (666, 31243), (942, 22089), (1194, 17427), (1413, 14726), (1791, 11618), (2826, 7363), (3582, 5809)]