21745370

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:610

約数の個数: 32

約数和(自身を含む): 40415760

約数和(自身を除く): 18670390

約数列:

[1, 2, 5, 10, 53, 89, 106, 178, 265, 445, 461, 530, 890, 922, 2305, 4610, 4717, 9434, 23585, 24433, 41029, 47170, 48866, 82058, 122165, 205145, 244330, 410290, 2174537, 4349074, 10872685, 21745370]

約数ペア:

[(1, 21745370), (2, 10872685), (5, 4349074), (10, 2174537), (53, 410290), (89, 244330), (106, 205145), (178, 122165), (265, 82058), (445, 48866), (461, 47170), (530, 41029), (890, 24433), (922, 23585), (2305, 9434), (4610, 4717)]