18899561

素因数分解:

${\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:304

約数の個数: 16

約数和(自身を含む): 20269440

約数和(自身を除く): 1369879

約数列:

[1, 29, 67, 71, 137, 1943, 2059, 3973, 4757, 9179, 9727, 137953, 266191, 282083, 651709, 18899561]

約数ペア:

[(1, 18899561), (29, 651709), (67, 282083), (71, 266191), (137, 137953), (1943, 9727), (2059, 9179), (3973, 4757)]