201809391

素因数分解:

$3^1\times 7^2\times {\mathrm{487}}^1\times {\mathrm{2819}}^1$

素因数の和:3323

約数の個数: 24

約数和(自身を含む): 313764480

約数和(自身を除く): 111955089

約数列:

[1, 3, 7, 21, 49, 147, 487, 1461, 2819, 3409, 8457, 10227, 19733, 23863, 59199, 71589, 138131, 414393, 1372853, 4118559, 9609971, 28829913, 67269797, 201809391]

約数ペア:

[(1, 201809391), (3, 67269797), (7, 28829913), (21, 9609971), (49, 4118559), (147, 1372853), (487, 414393), (1461, 138131), (2819, 71589), (3409, 59199), (8457, 23863), (10227, 19733)]