19490751

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{857}}^1$

素因数の和:908

約数の個数: 36

約数和(自身を含む): 33997392

約数和(自身を除く): 14506641

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 857, 1083, 1197, 2527, 2571, 3249, 5999, 7581, 7713, 16283, 17997, 22743, 48849, 53991, 113981, 146547, 309377, 341943, 928131, 1025829, 2165639, 2784393, 6496917, 19490751]

約数ペア:

[(1, 19490751), (3, 6496917), (7, 2784393), (9, 2165639), (19, 1025829), (21, 928131), (57, 341943), (63, 309377), (133, 146547), (171, 113981), (361, 53991), (399, 48849), (857, 22743), (1083, 17997), (1197, 16283), (2527, 7713), (2571, 7581), (3249, 5999)]