21280994

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{5869}}^1$

素因数の和:5922

約数の個数: 24

約数和(自身を含む): 38143260

約数和(自身を除く): 16862266

約数列:

[1, 2, 7, 14, 37, 49, 74, 98, 259, 518, 1813, 3626, 5869, 11738, 41083, 82166, 217153, 287581, 434306, 575162, 1520071, 3040142, 10640497, 21280994]

約数ペア:

[(1, 21280994), (2, 10640497), (7, 3040142), (14, 1520071), (37, 575162), (49, 434306), (74, 287581), (98, 217153), (259, 82166), (518, 41083), (1813, 11738), (3626, 5869)]