20721438

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{60589}}^1$

素因数の和:60616

約数の個数: 24

約数和(自身を含む): 47260200

約数和(自身を除く): 26538762

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342, 60589, 121178, 181767, 363534, 545301, 1090602, 1151191, 2302382, 3453573, 6907146, 10360719, 20721438]

約数ペア:

[(1, 20721438), (2, 10360719), (3, 6907146), (6, 3453573), (9, 2302382), (18, 1151191), (19, 1090602), (38, 545301), (57, 363534), (114, 181767), (171, 121178), (342, 60589)]