20763496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4643}}^1$

素因数の和:4705

約数の個数: 32

約数和(自身を含む): 42910560

約数和(自身を除く): 22147064

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4643, 9286, 18572, 37144, 60359, 120718, 199649, 241436, 399298, 482872, 798596, 1597192, 2595437, 5190874, 10381748, 20763496]

約数ペア:

[(1, 20763496), (2, 10381748), (4, 5190874), (8, 2595437), (13, 1597192), (26, 798596), (43, 482872), (52, 399298), (86, 241436), (104, 199649), (172, 120718), (344, 60359), (559, 37144), (1118, 18572), (2236, 9286), (4472, 4643)]