21854896

素因数分解:

$2^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2351}}^1$

素因数の和:2449

約数の個数: 40

約数和(自身を含む): 48996864

約数和(自身を除く): 27141968

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 83, 112, 166, 332, 581, 664, 1162, 1328, 2324, 2351, 4648, 4702, 9296, 9404, 16457, 18808, 32914, 37616, 65828, 131656, 195133, 263312, 390266, 780532, 1365931, 1561064, 2731862, 3122128, 5463724, 10927448, 21854896]

約数ペア:

[(1, 21854896), (2, 10927448), (4, 5463724), (7, 3122128), (8, 2731862), (14, 1561064), (16, 1365931), (28, 780532), (56, 390266), (83, 263312), (112, 195133), (166, 131656), (332, 65828), (581, 37616), (664, 32914), (1162, 18808), (1328, 16457), (2324, 9404), (2351, 9296), (4648, 4702)]