18340049

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 23365440

約数和(自身を除く): 5025391

約数列:

[1, 7, 13, 37, 91, 169, 259, 419, 481, 1183, 2933, 3367, 5447, 6253, 15503, 38129, 43771, 70811, 108521, 201539, 495677, 1410773, 2620007, 18340049]

約数ペア:

[(1, 18340049), (7, 2620007), (13, 1410773), (37, 495677), (91, 201539), (169, 108521), (259, 70811), (419, 43771), (481, 38129), (1183, 15503), (2933, 6253), (3367, 5447)]