213080609

素因数分解:

$7^1\times {\mathrm{43}}^2\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 253328832

約数和(自身を除く): 40248223

約数列:

[1, 7, 43, 101, 163, 301, 707, 1141, 1849, 4343, 7009, 12943, 16463, 30401, 49063, 115241, 186749, 301387, 707909, 1307243, 2109709, 4955363, 30440087, 213080609]

約数ペア:

[(1, 213080609), (7, 30440087), (43, 4955363), (101, 2109709), (163, 1307243), (301, 707909), (707, 301387), (1141, 186749), (1849, 115241), (4343, 49063), (7009, 30401), (12943, 16463)]