21891900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{72973}}^1$

素因数の和:72990

約数の個数: 36

約数和(自身を含む): 63341432

約数和(自身を除く): 41449532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 72973, 145946, 218919, 291892, 364865, 437838, 729730, 875676, 1094595, 1459460, 1824325, 2189190, 3648650, 4378380, 5472975, 7297300, 10945950, 21891900]

約数ペア:

[(1, 21891900), (2, 10945950), (3, 7297300), (4, 5472975), (5, 4378380), (6, 3648650), (10, 2189190), (12, 1824325), (15, 1459460), (20, 1094595), (25, 875676), (30, 729730), (50, 437838), (60, 364865), (75, 291892), (100, 218919), (150, 145946), (300, 72973)]