219639681

素因数分解:

$3^6\times {\mathrm{31}}^1\times {\mathrm{9719}}^1$

素因数の和:9768

約数の個数: 28

約数和(自身を含む): 339966720

約数和(自身を除く): 120327039

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 279, 729, 837, 2511, 7533, 9719, 22599, 29157, 87471, 262413, 301289, 787239, 903867, 2361717, 2711601, 7085151, 8134803, 24404409, 73213227, 219639681]

約数ペア:

[(1, 219639681), (3, 73213227), (9, 24404409), (27, 8134803), (31, 7085151), (81, 2711601), (93, 2361717), (243, 903867), (279, 787239), (729, 301289), (837, 262413), (2511, 87471), (7533, 29157), (9719, 22599)]