21891200

素因数分解:

$2^7\times 5^2\times {\mathrm{6841}}^1$

素因数の和:6865

約数の個数: 48

約数和(自身を含む): 54086010

約数和(自身を除く): 32194810

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 6841, 13682, 27364, 34205, 54728, 68410, 109456, 136820, 171025, 218912, 273640, 342050, 437824, 547280, 684100, 875648, 1094560, 1368200, 2189120, 2736400, 4378240, 5472800, 10945600, 21891200]

約数ペア:

[(1, 21891200), (2, 10945600), (4, 5472800), (5, 4378240), (8, 2736400), (10, 2189120), (16, 1368200), (20, 1094560), (25, 875648), (32, 684100), (40, 547280), (50, 437824), (64, 342050), (80, 273640), (100, 218912), (128, 171025), (160, 136820), (200, 109456), (320, 68410), (400, 54728), (640, 34205), (800, 27364), (1600, 13682), (3200, 6841)]