128281998

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1644641}}^1$

素因数の和:1644659

約数の個数: 16

約数和(自身を含む): 276299856

約数和(自身を除く): 148017858

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 1644641, 3289282, 4933923, 9867846, 21380333, 42760666, 64140999, 128281998]

約数ペア:

[(1, 128281998), (2, 64140999), (3, 42760666), (6, 21380333), (13, 9867846), (26, 4933923), (39, 3289282), (78, 1644641)]