20388823

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3673}}^1$

素因数の和:3754

約数の個数: 16

約数和(自身を含む): 25512256

約数和(自身を除く): 5123433

約数列:

[1, 7, 13, 61, 91, 427, 793, 3673, 5551, 25711, 47749, 224053, 334243, 1568371, 2912689, 20388823]

約数ペア:

[(1, 20388823), (7, 2912689), (13, 1568371), (61, 334243), (91, 224053), (427, 47749), (793, 25711), (3673, 5551)]