278642007

素因数分解:

$3^2\times 7^1\times {\mathrm{1163}}^1\times {\mathrm{3803}}^1$

素因数の和:4979

約数の個数: 24

約数和(自身を含む): 460497024

約数和(自身を除く): 181855017

約数列:

[1, 3, 7, 9, 21, 63, 1163, 3489, 3803, 8141, 10467, 11409, 24423, 26621, 34227, 73269, 79863, 239589, 4422889, 13268667, 30960223, 39806001, 92880669, 278642007]

約数ペア:

[(1, 278642007), (3, 92880669), (7, 39806001), (9, 30960223), (21, 13268667), (63, 4422889), (1163, 239589), (3489, 79863), (3803, 73269), (8141, 34227), (10467, 26621), (11409, 24423)]