27721595

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 10432645

約数列:

[1, 5, 11, 31, 55, 71, 155, 229, 341, 355, 781, 1145, 1705, 2201, 2519, 3905, 7099, 11005, 12595, 16259, 24211, 35495, 78089, 81295, 121055, 178849, 390445, 504029, 894245, 2520145, 5544319, 27721595]

約数ペア:

[(1, 27721595), (5, 5544319), (11, 2520145), (31, 894245), (55, 504029), (71, 390445), (155, 178849), (229, 121055), (341, 81295), (355, 78089), (781, 35495), (1145, 24211), (1705, 16259), (2201, 12595), (2519, 11005), (3905, 7099)]