20951271

素因数分解:

$3^3\times {\mathrm{11}}^4\times {\mathrm{53}}^1$

素因数の和:106

約数の個数: 40

約数和(自身を含む): 34786800

約数和(自身を除く): 13835529

約数列:

[1, 3, 9, 11, 27, 33, 53, 99, 121, 159, 297, 363, 477, 583, 1089, 1331, 1431, 1749, 3267, 3993, 5247, 6413, 11979, 14641, 15741, 19239, 35937, 43923, 57717, 70543, 131769, 173151, 211629, 395307, 634887, 775973, 1904661, 2327919, 6983757, 20951271]

約数ペア:

[(1, 20951271), (3, 6983757), (9, 2327919), (11, 1904661), (27, 775973), (33, 634887), (53, 395307), (99, 211629), (121, 173151), (159, 131769), (297, 70543), (363, 57717), (477, 43923), (583, 35937), (1089, 19239), (1331, 15741), (1431, 14641), (1749, 11979), (3267, 6413), (3993, 5247)]