21582414

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1663}}^1$

素因数の和:1781

約数の個数: 48

約数和(自身を含む): 53993472

約数和(自身を除く): 32411058

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 103, 126, 206, 309, 618, 721, 927, 1442, 1663, 1854, 2163, 3326, 4326, 4989, 6489, 9978, 11641, 12978, 14967, 23282, 29934, 34923, 69846, 104769, 171289, 209538, 342578, 513867, 1027734, 1199023, 1541601, 2398046, 3083202, 3597069, 7194138, 10791207, 21582414]

約数ペア:

[(1, 21582414), (2, 10791207), (3, 7194138), (6, 3597069), (7, 3083202), (9, 2398046), (14, 1541601), (18, 1199023), (21, 1027734), (42, 513867), (63, 342578), (103, 209538), (126, 171289), (206, 104769), (309, 69846), (618, 34923), (721, 29934), (927, 23282), (1442, 14967), (1663, 12978), (1854, 11641), (2163, 9978), (3326, 6489), (4326, 4989)]