68646837

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 107753472

約数和(自身を除く): 39106635

約数列:

[1, 3, 7, 21, 47, 141, 157, 329, 443, 471, 987, 1099, 1329, 3101, 3297, 7379, 9303, 20821, 22137, 51653, 62463, 69551, 145747, 154959, 208653, 437241, 486857, 1460571, 3268897, 9806691, 22882279, 68646837]

約数ペア:

[(1, 68646837), (3, 22882279), (7, 9806691), (21, 3268897), (47, 1460571), (141, 486857), (157, 437241), (329, 208653), (443, 154959), (471, 145747), (987, 69551), (1099, 62463), (1329, 51653), (3101, 22137), (3297, 20821), (7379, 9303)]