638964027

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{39863}}^1$

素因数の和:40019

約数の個数: 24

約数和(自身を含む): 1001224224

約数和(自身を除く): 362260197

約数列:

[1, 3, 9, 13, 39, 117, 137, 411, 1233, 1781, 5343, 16029, 39863, 119589, 358767, 518219, 1554657, 4663971, 5461231, 16383693, 49151079, 70996003, 212988009, 638964027]

約数ペア:

[(1, 638964027), (3, 212988009), (9, 70996003), (13, 49151079), (39, 16383693), (117, 5461231), (137, 4663971), (411, 1554657), (1233, 518219), (1781, 358767), (5343, 119589), (16029, 39863)]