20181255978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{258734051}}^1$

素因数の和:258734069

約数の個数: 16

約数和(自身を含む): 43467320736

約数和(自身を除く): 23286064758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 258734051, 517468102, 776202153, 1552404306, 3363542663, 6727085326, 10090627989, 20181255978]

約数ペア:

[(1, 20181255978), (2, 10090627989), (3, 6727085326), (6, 3363542663), (13, 1552404306), (26, 776202153), (39, 517468102), (78, 258734051)]