209854881

素因数分解:

$3^4\times {\mathrm{1483}}^1\times {\mathrm{1747}}^1$

素因数の和:3242

約数の個数: 20

約数和(自身を含む): 313877872

約数和(自身を除く): 104022991

約数列:

[1, 3, 9, 27, 81, 1483, 1747, 4449, 5241, 13347, 15723, 40041, 47169, 120123, 141507, 2590801, 7772403, 23317209, 69951627, 209854881]

約数ペア:

[(1, 209854881), (3, 69951627), (9, 23317209), (27, 7772403), (81, 2590801), (1483, 141507), (1747, 120123), (4449, 47169), (5241, 40041), (13347, 15723)]