398238399

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1783}}^1$

素因数の和:1908

約数の個数: 48

約数和(自身を含む): 654571008

約数和(自身を除く): 256332609

約数列:

[1, 3, 9, 13, 23, 39, 69, 83, 117, 207, 249, 299, 747, 897, 1079, 1783, 1909, 2691, 3237, 5349, 5727, 9711, 16047, 17181, 23179, 24817, 41009, 69537, 74451, 123027, 147989, 208611, 223353, 369081, 443967, 533117, 1331901, 1599351, 1923857, 3403747, 4798053, 5771571, 10211241, 17314713, 30633723, 44248711, 132746133, 398238399]

約数ペア:

[(1, 398238399), (3, 132746133), (9, 44248711), (13, 30633723), (23, 17314713), (39, 10211241), (69, 5771571), (83, 4798053), (117, 3403747), (207, 1923857), (249, 1599351), (299, 1331901), (747, 533117), (897, 443967), (1079, 369081), (1783, 223353), (1909, 208611), (2691, 147989), (3237, 123027), (5349, 74451), (5727, 69537), (9711, 41009), (16047, 24817), (17181, 23179)]