21980016

素因数分解:

$2^4\times 3^2\times {\mathrm{152639}}^1$

素因数の和:152653

約数の個数: 30

約数和(自身を含む): 61513920

約数和(自身を除く): 39533904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 152639, 305278, 457917, 610556, 915834, 1221112, 1373751, 1831668, 2442224, 2747502, 3663336, 5495004, 7326672, 10990008, 21980016]

約数ペア:

[(1, 21980016), (2, 10990008), (3, 7326672), (4, 5495004), (6, 3663336), (8, 2747502), (9, 2442224), (12, 1831668), (16, 1373751), (18, 1221112), (24, 915834), (36, 610556), (48, 457917), (72, 305278), (144, 152639)]