20897170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{613}}^1$

素因数の和:1114

約数の個数: 32

約数和(自身を含む): 43147008

約数和(自身を除く): 22249838

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 487, 613, 974, 1226, 2435, 3065, 3409, 4291, 4870, 6130, 6818, 8582, 17045, 21455, 34090, 42910, 298531, 597062, 1492655, 2089717, 2985310, 4179434, 10448585, 20897170]

約数ペア:

[(1, 20897170), (2, 10448585), (5, 4179434), (7, 2985310), (10, 2089717), (14, 1492655), (35, 597062), (70, 298531), (487, 42910), (613, 34090), (974, 21455), (1226, 17045), (2435, 8582), (3065, 6818), (3409, 6130), (4291, 4870)]