172488891

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 246094848

約数和(自身を除く): 73605957

約数列:

[1, 3, 23, 69, 71, 137, 213, 257, 411, 771, 1633, 3151, 4899, 5911, 9453, 9727, 17733, 18247, 29181, 35209, 54741, 105627, 223721, 419681, 671163, 809807, 1259043, 2429421, 2499839, 7499517, 57496297, 172488891]

約数ペア:

[(1, 172488891), (3, 57496297), (23, 7499517), (69, 2499839), (71, 2429421), (137, 1259043), (213, 809807), (257, 671163), (411, 419681), (771, 223721), (1633, 105627), (3151, 54741), (4899, 35209), (5911, 29181), (9453, 18247), (9727, 17733)]