18217387568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1393619}}^1$

素因数の和:1393689

約数の個数: 40

約数和(自身を含む): 38017953600

約数和(自身を除く): 19800566032

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1634, 3268, 6536, 13072, 1393619, 2787238, 5574476, 11148952, 22297904, 26478761, 52957522, 59925617, 105915044, 119851234, 211830088, 239702468, 423660176, 479404936, 958809872, 1138586723, 2277173446, 4554346892, 9108693784, 18217387568]

約数ペア:

[(1, 18217387568), (2, 9108693784), (4, 4554346892), (8, 2277173446), (16, 1138586723), (19, 958809872), (38, 479404936), (43, 423660176), (76, 239702468), (86, 211830088), (152, 119851234), (172, 105915044), (304, 59925617), (344, 52957522), (688, 26478761), (817, 22297904), (1634, 11148952), (3268, 5574476), (6536, 2787238), (13072, 1393619)]