21542504

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{593}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 21225496

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 239, 478, 593, 956, 1186, 1912, 2372, 4541, 4744, 9082, 11267, 18164, 22534, 36328, 45068, 90136, 141727, 283454, 566908, 1133816, 2692813, 5385626, 10771252, 21542504]

約数ペア:

[(1, 21542504), (2, 10771252), (4, 5385626), (8, 2692813), (19, 1133816), (38, 566908), (76, 283454), (152, 141727), (239, 90136), (478, 45068), (593, 36328), (956, 22534), (1186, 18164), (1912, 11267), (2372, 9082), (4541, 4744)]