64978221

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{281291}}^1$

素因数の和:281312

約数の個数: 16

約数和(自身を含む): 108016128

約数和(自身を除く): 43037907

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 281291, 843873, 1969037, 3094201, 5907111, 9282603, 21659407, 64978221]

約数ペア:

[(1, 64978221), (3, 21659407), (7, 9282603), (11, 5907111), (21, 3094201), (33, 1969037), (77, 843873), (231, 281291)]