19155565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{367}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 27449856

約数和(自身を除く): 8294291

約数列:

[1, 5, 11, 13, 55, 65, 73, 143, 365, 367, 715, 803, 949, 1835, 4015, 4037, 4745, 4771, 10439, 20185, 23855, 26791, 52195, 52481, 133955, 262405, 294701, 348283, 1473505, 1741415, 3831113, 19155565]

約数ペア:

[(1, 19155565), (5, 3831113), (11, 1741415), (13, 1473505), (55, 348283), (65, 294701), (73, 262405), (143, 133955), (365, 52481), (367, 52195), (715, 26791), (803, 23855), (949, 20185), (1835, 10439), (4015, 4771), (4037, 4745)]