20513008

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67477}}^1$

素因数の和:67504

約数の個数: 20

約数和(自身を含む): 41836360

約数和(自身を除く): 21323352

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 67477, 134954, 269908, 539816, 1079632, 1282063, 2564126, 5128252, 10256504, 20513008]

約数ペア:

[(1, 20513008), (2, 10256504), (4, 5128252), (8, 2564126), (16, 1282063), (19, 1079632), (38, 539816), (76, 269908), (152, 134954), (304, 67477)]