20372163

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 32277504

約数和(自身を除く): 11905341

約数列:

[1, 3, 7, 21, 37, 111, 157, 167, 259, 471, 501, 777, 1099, 1169, 3297, 3507, 5809, 6179, 17427, 18537, 26219, 40663, 43253, 78657, 121989, 129759, 183533, 550599, 970103, 2910309, 6790721, 20372163]

約数ペア:

[(1, 20372163), (3, 6790721), (7, 2910309), (21, 970103), (37, 550599), (111, 183533), (157, 129759), (167, 121989), (259, 78657), (471, 43253), (501, 40663), (777, 26219), (1099, 18537), (1169, 17427), (3297, 6179), (3507, 5809)]