12920236971

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1\times {\mathrm{2381}}^1$

素因数の和:2863

約数の個数: 32

約数和(自身を含む): 17830241856

約数和(自身を除く): 4910004885

約数列:

[1, 3, 41, 123, 157, 281, 471, 843, 2381, 6437, 7143, 11521, 19311, 34563, 44117, 97621, 132351, 292863, 373817, 669061, 1121451, 1808797, 2007183, 5426391, 15326497, 27431501, 45979491, 82294503, 105042577, 315127731, 4306745657, 12920236971]

約数ペア:

[(1, 12920236971), (3, 4306745657), (41, 315127731), (123, 105042577), (157, 82294503), (281, 45979491), (471, 27431501), (843, 15326497), (2381, 5426391), (6437, 2007183), (7143, 1808797), (11521, 1121451), (19311, 669061), (34563, 373817), (44117, 292863), (97621, 132351)]