28027503

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 48562176

約数和(自身を除く): 20534673

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 113, 127, 217, 279, 339, 381, 651, 791, 889, 1017, 1143, 1953, 2373, 2667, 3503, 3937, 7119, 8001, 10509, 11811, 14351, 24521, 27559, 31527, 35433, 43053, 73563, 82677, 100457, 129159, 220689, 248031, 301371, 444881, 904113, 1334643, 3114167, 4003929, 9342501, 28027503]

約数ペア:

[(1, 28027503), (3, 9342501), (7, 4003929), (9, 3114167), (21, 1334643), (31, 904113), (63, 444881), (93, 301371), (113, 248031), (127, 220689), (217, 129159), (279, 100457), (339, 82677), (381, 73563), (651, 43053), (791, 35433), (889, 31527), (1017, 27559), (1143, 24521), (1953, 14351), (2373, 11811), (2667, 10509), (3503, 8001), (3937, 7119)]