28218993

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{12763}}^1$

素因数の和:12844

約数の個数: 16

約数和(自身を含む): 41661696

約数和(自身を除く): 13442703

約数列:

[1, 3, 11, 33, 67, 201, 737, 2211, 12763, 38289, 140393, 421179, 855121, 2565363, 9406331, 28218993]

約数ペア:

[(1, 28218993), (3, 9406331), (11, 2565363), (33, 855121), (67, 421179), (201, 140393), (737, 38289), (2211, 12763)]