668228127

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{18049}}^1$

素因数の和:18143

約数の個数: 32

約数和(自身を含む): 1067404800

約数和(自身を除く): 399176673

約数列:

[1, 3, 7, 21, 41, 43, 123, 129, 287, 301, 861, 903, 1763, 5289, 12341, 18049, 37023, 54147, 126343, 379029, 740009, 776107, 2220027, 2328321, 5180063, 5432749, 15540189, 16298247, 31820387, 95461161, 222742709, 668228127]

約数ペア:

[(1, 668228127), (3, 222742709), (7, 95461161), (21, 31820387), (41, 16298247), (43, 15540189), (123, 5432749), (129, 5180063), (287, 2328321), (301, 2220027), (861, 776107), (903, 740009), (1763, 379029), (5289, 126343), (12341, 54147), (18049, 37023)]