21165369

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{4057}}^1$

素因数の和:4144

約数の個数: 16

約数和(自身を含む): 29607168

約数和(自身を除く): 8441799

約数列:

[1, 3, 37, 47, 111, 141, 1739, 4057, 5217, 12171, 150109, 190679, 450327, 572037, 7055123, 21165369]

約数ペア:

[(1, 21165369), (3, 7055123), (37, 572037), (47, 450327), (111, 190679), (141, 150109), (1739, 12171), (4057, 5217)]