30721842

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{2671}}^1$

素因数の和:2756

約数の個数: 40

約数和(自身を含む): 69835392

約数和(自身を除く): 39113550

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 426, 639, 1278, 1917, 2671, 3834, 5342, 5751, 8013, 11502, 16026, 24039, 48078, 72117, 144234, 189641, 216351, 379282, 432702, 568923, 1137846, 1706769, 3413538, 5120307, 10240614, 15360921, 30721842]

約数ペア:

[(1, 30721842), (2, 15360921), (3, 10240614), (6, 5120307), (9, 3413538), (18, 1706769), (27, 1137846), (54, 568923), (71, 432702), (81, 379282), (142, 216351), (162, 189641), (213, 144234), (426, 72117), (639, 48078), (1278, 24039), (1917, 16026), (2671, 11502), (3834, 8013), (5342, 5751)]