19281664

素因数分解:

$2^8\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:816

約数の個数: 36

約数和(自身を含む): 38897320

約数和(自身を除く): 19615656

約数列:

[1, 2, 4, 8, 16, 32, 64, 109, 128, 218, 256, 436, 691, 872, 1382, 1744, 2764, 3488, 5528, 6976, 11056, 13952, 22112, 27904, 44224, 75319, 88448, 150638, 176896, 301276, 602552, 1205104, 2410208, 4820416, 9640832, 19281664]

約数ペア:

[(1, 19281664), (2, 9640832), (4, 4820416), (8, 2410208), (16, 1205104), (32, 602552), (64, 301276), (109, 176896), (128, 150638), (218, 88448), (256, 75319), (436, 44224), (691, 27904), (872, 22112), (1382, 13952), (1744, 11056), (2764, 6976), (3488, 5528)]