13770721391

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{17749}}^1$

素因数の和:17919

約数の個数: 32

約数和(自身を含む): 16903680000

約数和(自身を除く): 3132958609

約数列:

[1, 7, 23, 61, 79, 161, 427, 553, 1403, 1817, 4819, 9821, 12719, 17749, 33733, 110837, 124243, 408227, 775859, 1082689, 1402171, 2857589, 7578823, 9815197, 24901847, 32249933, 85532431, 174312929, 225749531, 598727017, 1967245913, 13770721391]

約数ペア:

[(1, 13770721391), (7, 1967245913), (23, 598727017), (61, 225749531), (79, 174312929), (161, 85532431), (427, 32249933), (553, 24901847), (1403, 9815197), (1817, 7578823), (4819, 2857589), (9821, 1402171), (12719, 1082689), (17749, 775859), (33733, 408227), (110837, 124243)]