19909388

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{773}}^1$

素因数の和:961

約数の個数: 24

約数和(自身を含む): 35888832

約数和(自身を除く): 15979444

約数列:

[1, 2, 4, 47, 94, 137, 188, 274, 548, 773, 1546, 3092, 6439, 12878, 25756, 36331, 72662, 105901, 145324, 211802, 423604, 4977347, 9954694, 19909388]

約数ペア:

[(1, 19909388), (2, 9954694), (4, 4977347), (47, 423604), (94, 211802), (137, 145324), (188, 105901), (274, 72662), (548, 36331), (773, 25756), (1546, 12878), (3092, 6439)]