7278381

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2041

約数の個数: 24

約数和(自身を含む): 11784864

約数和(自身を除く): 4506483

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 1987, 3663, 5961, 17883, 21857, 65571, 73519, 196713, 220557, 661671, 808709, 2426127, 7278381]

約数ペア:

[(1, 7278381), (3, 2426127), (9, 808709), (11, 661671), (33, 220557), (37, 196713), (99, 73519), (111, 65571), (333, 21857), (407, 17883), (1221, 5961), (1987, 3663)]