21967456

素因数分解:

$2^5\times 7^1\times {\mathrm{281}}^1\times {\mathrm{349}}^1$

素因数の和:647

約数の個数: 48

約数和(自身を含む): 49744800

約数和(自身を除く): 27777344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 281, 349, 562, 698, 1124, 1396, 1967, 2248, 2443, 2792, 3934, 4496, 4886, 5584, 7868, 8992, 9772, 11168, 15736, 19544, 31472, 39088, 62944, 78176, 98069, 196138, 392276, 686483, 784552, 1372966, 1569104, 2745932, 3138208, 5491864, 10983728, 21967456]

約数ペア:

[(1, 21967456), (2, 10983728), (4, 5491864), (7, 3138208), (8, 2745932), (14, 1569104), (16, 1372966), (28, 784552), (32, 686483), (56, 392276), (112, 196138), (224, 98069), (281, 78176), (349, 62944), (562, 39088), (698, 31472), (1124, 19544), (1396, 15736), (1967, 11168), (2248, 9772), (2443, 8992), (2792, 7868), (3934, 5584), (4496, 4886)]