1218721998

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{15624641}}^1$

素因数の和:15624659

約数の個数: 16

約数和(自身を含む): 2624939856

約数和(自身を除く): 1406217858

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 15624641, 31249282, 46873923, 93747846, 203120333, 406240666, 609360999, 1218721998]

約数ペア:

[(1, 1218721998), (2, 609360999), (3, 406240666), (6, 203120333), (13, 93747846), (26, 46873923), (39, 31249282), (78, 15624641)]