31190523

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2657}}^1$

素因数の和:2723

約数の個数: 32

約数和(自身を含む): 52394496

約数和(自身を除く): 21203973

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1677, 2657, 3913, 7971, 11739, 18599, 34541, 55797, 103623, 114251, 241787, 342753, 725361, 799757, 1485263, 2399271, 4455789, 10396841, 31190523]

約数ペア:

[(1, 31190523), (3, 10396841), (7, 4455789), (13, 2399271), (21, 1485263), (39, 799757), (43, 725361), (91, 342753), (129, 241787), (273, 114251), (301, 103623), (559, 55797), (903, 34541), (1677, 18599), (2657, 11739), (3913, 7971)]