21000398484

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{134617939}}^1$

素因数の和:134617959

約数の個数: 24

約数和(自身を含む): 52770232480

約数和(自身を除く): 31769833996

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 134617939, 269235878, 403853817, 538471756, 807707634, 1615415268, 1750033207, 3500066414, 5250099621, 7000132828, 10500199242, 21000398484]

約数ペア:

[(1, 21000398484), (2, 10500199242), (3, 7000132828), (4, 5250099621), (6, 3500066414), (12, 1750033207), (13, 1615415268), (26, 807707634), (39, 538471756), (52, 403853817), (78, 269235878), (156, 134617939)]