21765212

素因数分解:

$2^2\times 7^2\times {\mathrm{293}}^1\times {\mathrm{379}}^1$

素因数の和:690

約数の個数: 36

約数和(自身を含む): 44576280

約数和(自身を除く): 22811068

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 293, 379, 586, 758, 1172, 1516, 2051, 2653, 4102, 5306, 8204, 10612, 14357, 18571, 28714, 37142, 57428, 74284, 111047, 222094, 444188, 777329, 1554658, 3109316, 5441303, 10882606, 21765212]

約数ペア:

[(1, 21765212), (2, 10882606), (4, 5441303), (7, 3109316), (14, 1554658), (28, 777329), (49, 444188), (98, 222094), (196, 111047), (293, 74284), (379, 57428), (586, 37142), (758, 28714), (1172, 18571), (1516, 14357), (2051, 10612), (2653, 8204), (4102, 5306)]