21410816

素因数分解:

$2^{10}\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:159

約数の個数: 88

約数和(自身を含む): 51093120

約数和(自身を除く): 29682304

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 64, 103, 112, 116, 128, 203, 206, 224, 232, 256, 406, 412, 448, 464, 512, 721, 812, 824, 896, 928, 1024, 1442, 1624, 1648, 1792, 1856, 2884, 2987, 3248, 3296, 3584, 3712, 5768, 5974, 6496, 6592, 7168, 7424, 11536, 11948, 12992, 13184, 14848, 20909, 23072, 23896, 25984, 26368, 29696, 41818, 46144, 47792, 51968, 52736, 83636, 92288, 95584, 103936, 105472, 167272, 184576, 191168, 207872, 334544, 369152, 382336, 669088, 738304, 764672, 1338176, 1529344, 2676352, 3058688, 5352704, 10705408, 21410816]

約数ペア:

[(1, 21410816), (2, 10705408), (4, 5352704), (7, 3058688), (8, 2676352), (14, 1529344), (16, 1338176), (28, 764672), (29, 738304), (32, 669088), (56, 382336), (58, 369152), (64, 334544), (103, 207872), (112, 191168), (116, 184576), (128, 167272), (203, 105472), (206, 103936), (224, 95584), (232, 92288), (256, 83636), (406, 52736), (412, 51968), (448, 47792), (464, 46144), (512, 41818), (721, 29696), (812, 26368), (824, 25984), (896, 23896), (928, 23072), (1024, 20909), (1442, 14848), (1624, 13184), (1648, 12992), (1792, 11948), (1856, 11536), (2884, 7424), (2987, 7168), (3248, 6592), (3296, 6496), (3584, 5974), (3712, 5768)]