21338611

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:954

約数の個数: 16

約数和(自身を含む): 25251840

約数和(自身を除く): 3913229

約数列:

[1, 7, 47, 79, 329, 553, 821, 3713, 5747, 25991, 38587, 64859, 270109, 454013, 3048373, 21338611]

約数ペア:

[(1, 21338611), (7, 3048373), (47, 454013), (79, 270109), (329, 64859), (553, 38587), (821, 25991), (3713, 5747)]