218217601

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1\times {\mathrm{3109}}^1$

素因数の和:3424

約数の個数: 16

約数和(自身を含む): 257159680

約数和(自身を除く): 38942079

約数列:

[1, 7, 37, 259, 271, 1897, 3109, 10027, 21763, 70189, 115033, 805231, 842539, 5897773, 31173943, 218217601]

約数ペア:

[(1, 218217601), (7, 31173943), (37, 5897773), (259, 842539), (271, 805231), (1897, 115033), (3109, 70189), (10027, 21763)]