21428736

素因数分解:

$2^9\times 3^1\times 7^1\times {\mathrm{1993}}^1$

素因数の和:2021

約数の個数: 80

約数和(自身を含む): 65275584

約数和(自身を除く): 43846848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 256, 336, 384, 448, 512, 672, 768, 896, 1344, 1536, 1792, 1993, 2688, 3584, 3986, 5376, 5979, 7972, 10752, 11958, 13951, 15944, 23916, 27902, 31888, 41853, 47832, 55804, 63776, 83706, 95664, 111608, 127552, 167412, 191328, 223216, 255104, 334824, 382656, 446432, 510208, 669648, 765312, 892864, 1020416, 1339296, 1530624, 1785728, 2678592, 3061248, 3571456, 5357184, 7142912, 10714368, 21428736]

約数ペア:

[(1, 21428736), (2, 10714368), (3, 7142912), (4, 5357184), (6, 3571456), (7, 3061248), (8, 2678592), (12, 1785728), (14, 1530624), (16, 1339296), (21, 1020416), (24, 892864), (28, 765312), (32, 669648), (42, 510208), (48, 446432), (56, 382656), (64, 334824), (84, 255104), (96, 223216), (112, 191328), (128, 167412), (168, 127552), (192, 111608), (224, 95664), (256, 83706), (336, 63776), (384, 55804), (448, 47832), (512, 41853), (672, 31888), (768, 27902), (896, 23916), (1344, 15944), (1536, 13951), (1792, 11958), (1993, 10752), (2688, 7972), (3584, 5979), (3986, 5376)]