18998974148

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{340801}}^1$

素因数の和:341004

約数の個数: 48

約数和(自身を含む): 41681447808

約数和(自身を除く): 22682473660

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 181, 308, 362, 724, 1267, 1991, 2534, 3982, 5068, 7964, 13937, 27874, 55748, 340801, 681602, 1363204, 2385607, 3748811, 4771214, 7497622, 9542428, 14995244, 26241677, 52483354, 61684981, 104966708, 123369962, 246739924, 431794867, 678534791, 863589734, 1357069582, 1727179468, 2714139164, 4749743537, 9499487074, 18998974148]

約数ペア:

[(1, 18998974148), (2, 9499487074), (4, 4749743537), (7, 2714139164), (11, 1727179468), (14, 1357069582), (22, 863589734), (28, 678534791), (44, 431794867), (77, 246739924), (154, 123369962), (181, 104966708), (308, 61684981), (362, 52483354), (724, 26241677), (1267, 14995244), (1991, 9542428), (2534, 7497622), (3982, 4771214), (5068, 3748811), (7964, 2385607), (13937, 1363204), (27874, 681602), (55748, 340801)]