21900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{73}}^1$

素因数の和:90

約数の個数: 36

約数和(自身を含む): 64232

約数和(自身を除く): 42332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 73, 75, 100, 146, 150, 219, 292, 300, 365, 438, 730, 876, 1095, 1460, 1825, 2190, 3650, 4380, 5475, 7300, 10950, 21900]

約数ペア:

[(1, 21900), (2, 10950), (3, 7300), (4, 5475), (5, 4380), (6, 3650), (10, 2190), (12, 1825), (15, 1460), (20, 1095), (25, 876), (30, 730), (50, 438), (60, 365), (73, 300), (75, 292), (100, 219), (146, 150)]