20570139

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 31530240

約数和(自身を除く): 10960101

約数列:

[1, 3, 9, 27, 67, 83, 137, 201, 249, 411, 603, 747, 1233, 1809, 2241, 3699, 5561, 9179, 11371, 16683, 27537, 34113, 50049, 82611, 102339, 150147, 247833, 307017, 761857, 2285571, 6856713, 20570139]

約数ペア:

[(1, 20570139), (3, 6856713), (9, 2285571), (27, 761857), (67, 307017), (83, 247833), (137, 150147), (201, 102339), (249, 82611), (411, 50049), (603, 34113), (747, 27537), (1233, 16683), (1809, 11371), (2241, 9179), (3699, 5561)]