21806756

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{3457}}^1$

素因数の和:3563

約数の個数: 24

約数和(自身を含む): 40666080

約数和(自身を除く): 18859324

約数列:

[1, 2, 4, 19, 38, 76, 83, 166, 332, 1577, 3154, 3457, 6308, 6914, 13828, 65683, 131366, 262732, 286931, 573862, 1147724, 5451689, 10903378, 21806756]

約数ペア:

[(1, 21806756), (2, 10903378), (4, 5451689), (19, 1147724), (38, 573862), (76, 286931), (83, 262732), (166, 131366), (332, 65683), (1577, 13828), (3154, 6914), (3457, 6308)]