21000455500

素因数分解:

$2^2\times 5^3\times {\mathrm{1049}}^1\times {\mathrm{40039}}^1$

素因数の和:41107

約数の個数: 48

約数和(自身を含む): 45909864000

約数和(自身を除く): 24909408500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 1049, 2098, 4196, 5245, 10490, 20980, 26225, 40039, 52450, 80078, 104900, 131125, 160156, 200195, 262250, 400390, 524500, 800780, 1000975, 2001950, 4003900, 5004875, 10009750, 20019500, 42000911, 84001822, 168003644, 210004555, 420009110, 840018220, 1050022775, 2100045550, 4200091100, 5250113875, 10500227750, 21000455500]

約数ペア:

[(1, 21000455500), (2, 10500227750), (4, 5250113875), (5, 4200091100), (10, 2100045550), (20, 1050022775), (25, 840018220), (50, 420009110), (100, 210004555), (125, 168003644), (250, 84001822), (500, 42000911), (1049, 20019500), (2098, 10009750), (4196, 5004875), (5245, 4003900), (10490, 2001950), (20980, 1000975), (26225, 800780), (40039, 524500), (52450, 400390), (80078, 262250), (104900, 200195), (131125, 160156)]