20429487

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{617}}^1$

素因数の和:919

約数の個数: 24

約数和(自身を含む): 31943184

約数和(自身を除く): 11513697

約数列:

[1, 3, 9, 13, 39, 117, 283, 617, 849, 1851, 2547, 3679, 5553, 8021, 11037, 24063, 33111, 72189, 174611, 523833, 1571499, 2269943, 6809829, 20429487]

約数ペア:

[(1, 20429487), (3, 6809829), (9, 2269943), (13, 1571499), (39, 523833), (117, 174611), (283, 72189), (617, 33111), (849, 24063), (1851, 11037), (2547, 8021), (3679, 5553)]