20903757

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{383}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 33619968

約数和(自身を除く): 12716211

約数列:

[1, 3, 7, 21, 23, 69, 113, 161, 339, 383, 483, 791, 1149, 2373, 2599, 2681, 7797, 8043, 8809, 18193, 26427, 43279, 54579, 61663, 129837, 184989, 302953, 908859, 995417, 2986251, 6967919, 20903757]

約数ペア:

[(1, 20903757), (3, 6967919), (7, 2986251), (21, 995417), (23, 908859), (69, 302953), (113, 184989), (161, 129837), (339, 61663), (383, 54579), (483, 43279), (791, 26427), (1149, 18193), (2373, 8809), (2599, 8043), (2681, 7797)]