20215653921

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{90437}}^1$

素因数の和:90950

約数の個数: 32

約数和(自身を含む): 31776295680

約数和(自身を除く): 11560641759

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 487, 1461, 4383, 8279, 13149, 24837, 74511, 90437, 223533, 271311, 813933, 1537429, 2441799, 4612287, 13836861, 41510583, 44042819, 132128457, 396385371, 748727923, 1189156113, 2246183769, 6738551307, 20215653921]

約数ペア:

[(1, 20215653921), (3, 6738551307), (9, 2246183769), (17, 1189156113), (27, 748727923), (51, 396385371), (153, 132128457), (459, 44042819), (487, 41510583), (1461, 13836861), (4383, 4612287), (8279, 2441799), (13149, 1537429), (24837, 813933), (74511, 271311), (90437, 223533)]