21019128

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67369}}^1$

素因数の和:67391

約数の個数: 32

約数和(自身を含む): 56590800

約数和(自身を除く): 35571672

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67369, 134738, 202107, 269476, 404214, 538952, 808428, 875797, 1616856, 1751594, 2627391, 3503188, 5254782, 7006376, 10509564, 21019128]

約数ペア:

[(1, 21019128), (2, 10509564), (3, 7006376), (4, 5254782), (6, 3503188), (8, 2627391), (12, 1751594), (13, 1616856), (24, 875797), (26, 808428), (39, 538952), (52, 404214), (78, 269476), (104, 202107), (156, 134738), (312, 67369)]