20865135

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{409}}^1$

素因数の和:615

約数の個数: 32

約数和(自身を含む): 35424000

約数和(自身を除く): 14558865

約数列:

[1, 3, 5, 15, 19, 57, 95, 179, 285, 409, 537, 895, 1227, 2045, 2685, 3401, 6135, 7771, 10203, 17005, 23313, 38855, 51015, 73211, 116565, 219633, 366055, 1098165, 1391009, 4173027, 6955045, 20865135]

約数ペア:

[(1, 20865135), (3, 6955045), (5, 4173027), (15, 1391009), (19, 1098165), (57, 366055), (95, 219633), (179, 116565), (285, 73211), (409, 51015), (537, 38855), (895, 23313), (1227, 17005), (2045, 10203), (2685, 7771), (3401, 6135)]