21939400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{15671}}^1$

素因数の和:15694

約数の個数: 48

約数和(自身を含む): 58299840

約数和(自身を除く): 36360440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 15671, 31342, 62684, 78355, 109697, 125368, 156710, 219394, 313420, 391775, 438788, 548485, 626840, 783550, 877576, 1096970, 1567100, 2193940, 2742425, 3134200, 4387880, 5484850, 10969700, 21939400]

約数ペア:

[(1, 21939400), (2, 10969700), (4, 5484850), (5, 4387880), (7, 3134200), (8, 2742425), (10, 2193940), (14, 1567100), (20, 1096970), (25, 877576), (28, 783550), (35, 626840), (40, 548485), (50, 438788), (56, 391775), (70, 313420), (100, 219394), (140, 156710), (175, 125368), (200, 109697), (280, 78355), (350, 62684), (700, 31342), (1400, 15671)]