1678889721

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{5407}}^1$

素因数の和:5565

約数の個数: 32

約数和(自身を含む): 2398556160

約数和(自身を除く): 719666439

約数列:

[1, 3, 29, 43, 83, 87, 129, 249, 1247, 2407, 3569, 3741, 5407, 7221, 10707, 16221, 103501, 156803, 232501, 310503, 448781, 470409, 697503, 1346343, 6742529, 13014649, 19297583, 20227587, 39043947, 57892749, 559629907, 1678889721]

約数ペア:

[(1, 1678889721), (3, 559629907), (29, 57892749), (43, 39043947), (83, 20227587), (87, 19297583), (129, 13014649), (249, 6742529), (1247, 1346343), (2407, 697503), (3569, 470409), (3741, 448781), (5407, 310503), (7221, 232501), (10707, 156803), (16221, 103501)]