21891730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1039}}^1$

素因数の和:1103

約数の個数: 48

約数和(自身を含む): 46949760

約数和(自身を除く): 25058030

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 70, 86, 98, 215, 245, 301, 430, 490, 602, 1039, 1505, 2078, 2107, 3010, 4214, 5195, 7273, 10390, 10535, 14546, 21070, 36365, 44677, 50911, 72730, 89354, 101822, 223385, 254555, 312739, 446770, 509110, 625478, 1563695, 2189173, 3127390, 4378346, 10945865, 21891730]

約数ペア:

[(1, 21891730), (2, 10945865), (5, 4378346), (7, 3127390), (10, 2189173), (14, 1563695), (35, 625478), (43, 509110), (49, 446770), (70, 312739), (86, 254555), (98, 223385), (215, 101822), (245, 89354), (301, 72730), (430, 50911), (490, 44677), (602, 36365), (1039, 21070), (1505, 14546), (2078, 10535), (2107, 10390), (3010, 7273), (4214, 5195)]