21791200

素因数分解:

$2^5\times 5^2\times {\mathrm{27239}}^1$

素因数の和:27259

約数の個数: 36

約数和(自身を含む): 53199720

約数和(自身を除く): 31408520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 27239, 54478, 108956, 136195, 217912, 272390, 435824, 544780, 680975, 871648, 1089560, 1361950, 2179120, 2723900, 4358240, 5447800, 10895600, 21791200]

約数ペア:

[(1, 21791200), (2, 10895600), (4, 5447800), (5, 4358240), (8, 2723900), (10, 2179120), (16, 1361950), (20, 1089560), (25, 871648), (32, 680975), (40, 544780), (50, 435824), (80, 272390), (100, 217912), (160, 136195), (200, 108956), (400, 54478), (800, 27239)]