21267200

素因数分解:

$2^8\times 5^2\times {\mathrm{3323}}^1$

素因数の和:3349

約数の個数: 54

約数和(自身を含む): 52655484

約数和(自身を除く): 31388284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 3323, 6400, 6646, 13292, 16615, 26584, 33230, 53168, 66460, 83075, 106336, 132920, 166150, 212672, 265840, 332300, 425344, 531680, 664600, 850688, 1063360, 1329200, 2126720, 2658400, 4253440, 5316800, 10633600, 21267200]

約数ペア:

[(1, 21267200), (2, 10633600), (4, 5316800), (5, 4253440), (8, 2658400), (10, 2126720), (16, 1329200), (20, 1063360), (25, 850688), (32, 664600), (40, 531680), (50, 425344), (64, 332300), (80, 265840), (100, 212672), (128, 166150), (160, 132920), (200, 106336), (256, 83075), (320, 66460), (400, 53168), (640, 33230), (800, 26584), (1280, 16615), (1600, 13292), (3200, 6646), (3323, 6400)]