18704018

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 31026240

約数和(自身を除く): 12322222

約数列:

[1, 2, 19, 37, 38, 53, 74, 106, 251, 502, 703, 1007, 1406, 1961, 2014, 3922, 4769, 9287, 9538, 13303, 18574, 26606, 37259, 74518, 176453, 252757, 352906, 492211, 505514, 984422, 9352009, 18704018]

約数ペア:

[(1, 18704018), (2, 9352009), (19, 984422), (37, 505514), (38, 492211), (53, 352906), (74, 252757), (106, 176453), (251, 74518), (502, 37259), (703, 26606), (1007, 18574), (1406, 13303), (1961, 9538), (2014, 9287), (3922, 4769)]