19791536

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72763}}^1$

素因数の和:72788

約数の個数: 20

約数和(自身を含む): 40602312

約数和(自身を除く): 20810776

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72763, 145526, 291052, 582104, 1164208, 1236971, 2473942, 4947884, 9895768, 19791536]

約数ペア:

[(1, 19791536), (2, 9895768), (4, 4947884), (8, 2473942), (16, 1236971), (17, 1164208), (34, 582104), (68, 291052), (136, 145526), (272, 72763)]