19915398

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1759}}^1$

素因数の和:1821

約数の個数: 48

約数和(自身を含む): 46949760

約数和(自身を除く): 27034362

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 37, 51, 74, 102, 111, 153, 222, 306, 333, 629, 666, 1258, 1759, 1887, 3518, 3774, 5277, 5661, 10554, 11322, 15831, 29903, 31662, 59806, 65083, 89709, 130166, 179418, 195249, 269127, 390498, 538254, 585747, 1106411, 1171494, 2212822, 3319233, 6638466, 9957699, 19915398]

約数ペア:

[(1, 19915398), (2, 9957699), (3, 6638466), (6, 3319233), (9, 2212822), (17, 1171494), (18, 1106411), (34, 585747), (37, 538254), (51, 390498), (74, 269127), (102, 195249), (111, 179418), (153, 130166), (222, 89709), (306, 65083), (333, 59806), (629, 31662), (666, 29903), (1258, 15831), (1759, 11322), (1887, 10554), (3518, 5661), (3774, 5277)]