18682168

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1381}}^1$

素因数の和:1495

約数の個数: 32

約数和(自身を含む): 37314000

約数和(自身を除く): 18631832

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1381, 1691, 2762, 3382, 5524, 6764, 11048, 13528, 26239, 52478, 104956, 122909, 209912, 245818, 491636, 983272, 2335271, 4670542, 9341084, 18682168]

約数ペア:

[(1, 18682168), (2, 9341084), (4, 4670542), (8, 2335271), (19, 983272), (38, 491636), (76, 245818), (89, 209912), (152, 122909), (178, 104956), (356, 52478), (712, 26239), (1381, 13528), (1691, 11048), (2762, 6764), (3382, 5524)]