21064250

素因数分解:

$2^1\times 5^3\times {\mathrm{109}}^1\times {\mathrm{773}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 39845520

約数和(自身を除く): 18781270

約数列:

[1, 2, 5, 10, 25, 50, 109, 125, 218, 250, 545, 773, 1090, 1546, 2725, 3865, 5450, 7730, 13625, 19325, 27250, 38650, 84257, 96625, 168514, 193250, 421285, 842570, 2106425, 4212850, 10532125, 21064250]

約数ペア:

[(1, 21064250), (2, 10532125), (5, 4212850), (10, 2106425), (25, 842570), (50, 421285), (109, 193250), (125, 168514), (218, 96625), (250, 84257), (545, 38650), (773, 27250), (1090, 19325), (1546, 13625), (2725, 7730), (3865, 5450)]