19493860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23773}}^1$

素因数の和:23823

約数の個数: 24

約数和(自身を含む): 41937336

約数和(自身を除く): 22443476

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23773, 47546, 95092, 118865, 237730, 475460, 974693, 1949386, 3898772, 4873465, 9746930, 19493860]

約数ペア:

[(1, 19493860), (2, 9746930), (4, 4873465), (5, 3898772), (10, 1949386), (20, 974693), (41, 475460), (82, 237730), (164, 118865), (205, 95092), (410, 47546), (820, 23773)]