21252500

素因数分解:

$2^2\times 5^4\times {\mathrm{8501}}^1$

素因数の和:8525

約数の個数: 30

約数和(自身を含む): 46480434

約数和(自身を除く): 25227934

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 8501, 17002, 34004, 42505, 85010, 170020, 212525, 425050, 850100, 1062625, 2125250, 4250500, 5313125, 10626250, 21252500]

約数ペア:

[(1, 21252500), (2, 10626250), (4, 5313125), (5, 4250500), (10, 2125250), (20, 1062625), (25, 850100), (50, 425050), (100, 212525), (125, 170020), (250, 85010), (500, 42505), (625, 34004), (1250, 17002), (2500, 8501)]