21744730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:443

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 24220070

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 199, 223, 245, 398, 446, 490, 995, 1115, 1393, 1561, 1990, 2230, 2786, 3122, 6965, 7805, 9751, 10927, 13930, 15610, 19502, 21854, 44377, 48755, 54635, 88754, 97510, 109270, 221885, 310639, 443770, 621278, 1553195, 2174473, 3106390, 4348946, 10872365, 21744730]

約数ペア:

[(1, 21744730), (2, 10872365), (5, 4348946), (7, 3106390), (10, 2174473), (14, 1553195), (35, 621278), (49, 443770), (70, 310639), (98, 221885), (199, 109270), (223, 97510), (245, 88754), (398, 54635), (446, 48755), (490, 44377), (995, 21854), (1115, 19502), (1393, 15610), (1561, 13930), (1990, 10927), (2230, 9751), (2786, 7805), (3122, 6965)]