18311041

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^2$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 23000640

約数和(自身を除く): 4689599

約数列:

[1, 7, 19, 37, 61, 133, 259, 427, 703, 1159, 2257, 3721, 4921, 8113, 15799, 26047, 42883, 70699, 137677, 300181, 494893, 963739, 2615863, 18311041]

約数ペア:

[(1, 18311041), (7, 2615863), (19, 963739), (37, 494893), (61, 300181), (133, 137677), (259, 70699), (427, 42883), (703, 26047), (1159, 15799), (2257, 8113), (3721, 4921)]