21632660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{809}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 52254720

約数和(自身を除く): 30622060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 764, 809, 955, 1337, 1618, 1910, 2674, 3236, 3820, 4045, 5348, 5663, 6685, 8090, 11326, 13370, 16180, 22652, 26740, 28315, 56630, 113260, 154519, 309038, 618076, 772595, 1081633, 1545190, 2163266, 3090380, 4326532, 5408165, 10816330, 21632660]

約数ペア:

[(1, 21632660), (2, 10816330), (4, 5408165), (5, 4326532), (7, 3090380), (10, 2163266), (14, 1545190), (20, 1081633), (28, 772595), (35, 618076), (70, 309038), (140, 154519), (191, 113260), (382, 56630), (764, 28315), (809, 26740), (955, 22652), (1337, 16180), (1618, 13370), (1910, 11326), (2674, 8090), (3236, 6685), (3820, 5663), (4045, 5348)]