21031570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2917}}^1$

素因数の和:3034

約数の個数: 32

約数和(自身を含む): 43699968

約数和(自身を除く): 22668398

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 103, 206, 515, 721, 1030, 1442, 2917, 3605, 5834, 7210, 14585, 20419, 29170, 40838, 102095, 204190, 300451, 600902, 1502255, 2103157, 3004510, 4206314, 10515785, 21031570]

約数ペア:

[(1, 21031570), (2, 10515785), (5, 4206314), (7, 3004510), (10, 2103157), (14, 1502255), (35, 600902), (70, 300451), (103, 204190), (206, 102095), (515, 40838), (721, 29170), (1030, 20419), (1442, 14585), (2917, 7210), (3605, 5834)]