18914539

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:295

約数の個数: 24

約数和(自身を含む): 23113728

約数和(自身を除く): 4199189

約数列:

[1, 7, 43, 47, 49, 191, 301, 329, 1337, 2021, 2107, 2303, 8213, 8977, 9359, 14147, 57491, 62839, 99029, 386011, 402437, 439873, 2702077, 18914539]

約数ペア:

[(1, 18914539), (7, 2702077), (43, 439873), (47, 402437), (49, 386011), (191, 99029), (301, 62839), (329, 57491), (1337, 14147), (2021, 9359), (2107, 8977), (2303, 8213)]