261387768

素因数分解:

$2^3\times 3^1\times {\mathrm{10891157}}^1$

素因数の和:10891166

約数の個数: 16

約数和(自身を含む): 653469480

約数和(自身を除く): 392081712

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 10891157, 21782314, 32673471, 43564628, 65346942, 87129256, 130693884, 261387768]

約数ペア:

[(1, 261387768), (2, 130693884), (3, 87129256), (4, 65346942), (6, 43564628), (8, 32673471), (12, 21782314), (24, 10891157)]