18839916

素因数分解:

$2^2\times 3^2\times {\mathrm{419}}^1\times {\mathrm{1249}}^1$

素因数の和:1678

約数の個数: 36

約数和(自身を含む): 47775000

約数和(自身を除く): 28935084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 419, 838, 1249, 1257, 1676, 2498, 2514, 3747, 3771, 4996, 5028, 7494, 7542, 11241, 14988, 15084, 22482, 44964, 523331, 1046662, 1569993, 2093324, 3139986, 4709979, 6279972, 9419958, 18839916]

約数ペア:

[(1, 18839916), (2, 9419958), (3, 6279972), (4, 4709979), (6, 3139986), (9, 2093324), (12, 1569993), (18, 1046662), (36, 523331), (419, 44964), (838, 22482), (1249, 15084), (1257, 14988), (1676, 11241), (2498, 7542), (2514, 7494), (3747, 5028), (3771, 4996)]