81312777

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{983}}^1$

素因数の和:1110

約数の個数: 48

約数和(自身を含む): 146135808

約数和(自身を除く): 64823031

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 101, 117, 273, 303, 707, 819, 909, 983, 1313, 2121, 2949, 3939, 6363, 6881, 8847, 9191, 11817, 12779, 20643, 27573, 38337, 61929, 82719, 89453, 99283, 115011, 268359, 297849, 694981, 805077, 893547, 1290679, 2084943, 3872037, 6254829, 9034753, 11616111, 27104259, 81312777]

約数ペア:

[(1, 81312777), (3, 27104259), (7, 11616111), (9, 9034753), (13, 6254829), (21, 3872037), (39, 2084943), (63, 1290679), (91, 893547), (101, 805077), (117, 694981), (273, 297849), (303, 268359), (707, 115011), (819, 99283), (909, 89453), (983, 82719), (1313, 61929), (2121, 38337), (2949, 27573), (3939, 20643), (6363, 12779), (6881, 11817), (8847, 9191)]