19556888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4001}}^1$

素因数の和:4067

約数の個数: 32

約数和(自身を含む): 40340160

約数和(自身を除く): 20783272

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4001, 4888, 8002, 16004, 32008, 52013, 104026, 188047, 208052, 376094, 416104, 752188, 1504376, 2444611, 4889222, 9778444, 19556888]

約数ペア:

[(1, 19556888), (2, 9778444), (4, 4889222), (8, 2444611), (13, 1504376), (26, 752188), (47, 416104), (52, 376094), (94, 208052), (104, 188047), (188, 104026), (376, 52013), (611, 32008), (1222, 16004), (2444, 8002), (4001, 4888)]