18995648

素因数分解:

$2^6\times 7^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:517

約数の個数: 56

約数和(自身を含む): 43586400

約数和(自身を除く): 24590752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 109, 112, 218, 224, 389, 436, 448, 763, 778, 872, 1526, 1556, 1744, 2723, 3052, 3112, 3488, 5446, 6104, 6224, 6976, 10892, 12208, 12448, 21784, 24416, 24896, 42401, 43568, 48832, 84802, 87136, 169604, 174272, 296807, 339208, 593614, 678416, 1187228, 1356832, 2374456, 2713664, 4748912, 9497824, 18995648]

約数ペア:

[(1, 18995648), (2, 9497824), (4, 4748912), (7, 2713664), (8, 2374456), (14, 1356832), (16, 1187228), (28, 678416), (32, 593614), (56, 339208), (64, 296807), (109, 174272), (112, 169604), (218, 87136), (224, 84802), (389, 48832), (436, 43568), (448, 42401), (763, 24896), (778, 24416), (872, 21784), (1526, 12448), (1556, 12208), (1744, 10892), (2723, 6976), (3052, 6224), (3112, 6104), (3488, 5446)]