21406752

素因数分解:

$2^5\times 3^2\times {\mathrm{239}}^1\times {\mathrm{311}}^1$

素因数の和:566

約数の個数: 72

約数和(自身を含む): 61326720

約数和(自身を除く): 39919968

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 239, 288, 311, 478, 622, 717, 933, 956, 1244, 1434, 1866, 1912, 2151, 2488, 2799, 2868, 3732, 3824, 4302, 4976, 5598, 5736, 7464, 7648, 8604, 9952, 11196, 11472, 14928, 17208, 22392, 22944, 29856, 34416, 44784, 68832, 74329, 89568, 148658, 222987, 297316, 445974, 594632, 668961, 891948, 1189264, 1337922, 1783896, 2378528, 2675844, 3567792, 5351688, 7135584, 10703376, 21406752]

約数ペア:

[(1, 21406752), (2, 10703376), (3, 7135584), (4, 5351688), (6, 3567792), (8, 2675844), (9, 2378528), (12, 1783896), (16, 1337922), (18, 1189264), (24, 891948), (32, 668961), (36, 594632), (48, 445974), (72, 297316), (96, 222987), (144, 148658), (239, 89568), (288, 74329), (311, 68832), (478, 44784), (622, 34416), (717, 29856), (933, 22944), (956, 22392), (1244, 17208), (1434, 14928), (1866, 11472), (1912, 11196), (2151, 9952), (2488, 8604), (2799, 7648), (2868, 7464), (3732, 5736), (3824, 5598), (4302, 4976)]