19725066844

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6462997}}^1$

素因数の和:6463117

約数の個数: 24

約数和(自身を含む): 39812067680

約数和(自身を除く): 20087000836

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6462997, 12925994, 25851988, 45240979, 90481958, 180963916, 704466673, 1408933346, 2817866692, 4931266711, 9862533422, 19725066844]

約数ペア:

[(1, 19725066844), (2, 9862533422), (4, 4931266711), (7, 2817866692), (14, 1408933346), (28, 704466673), (109, 180963916), (218, 90481958), (436, 45240979), (763, 25851988), (1526, 12925994), (3052, 6462997)]