155890007

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{39839}}^1$

素因数の和:39902

約数の個数: 16

約数和(自身を含む): 196331520

約数和(自身を除く): 40441513

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 39839, 278873, 517907, 1713077, 3625349, 11991539, 22270001, 155890007]

約数ペア:

[(1, 155890007), (7, 22270001), (13, 11991539), (43, 3625349), (91, 1713077), (301, 517907), (559, 278873), (3913, 39839)]