21218543996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1587739}}^1$

素因数の和:1588013

約数の個数: 24

約数和(自身を含む): 40144418160

約数和(自身を除く): 18925874164

約数列:

[1, 2, 4, 13, 26, 52, 257, 514, 1028, 3341, 6682, 13364, 1587739, 3175478, 6350956, 20640607, 41281214, 82562428, 408048923, 816097846, 1632195692, 5304635999, 10609271998, 21218543996]

約数ペア:

[(1, 21218543996), (2, 10609271998), (4, 5304635999), (13, 1632195692), (26, 816097846), (52, 408048923), (257, 82562428), (514, 41281214), (1028, 20640607), (3341, 6350956), (6682, 3175478), (13364, 1587739)]