21897824

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{52639}}^1$

素因数の和:52662

約数の個数: 24

約数和(自身を含む): 46428480

約数和(自身を除く): 24530656

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 52639, 105278, 210556, 421112, 684307, 842224, 1368614, 1684448, 2737228, 5474456, 10948912, 21897824]

約数ペア:

[(1, 21897824), (2, 10948912), (4, 5474456), (8, 2737228), (13, 1684448), (16, 1368614), (26, 842224), (32, 684307), (52, 421112), (104, 210556), (208, 105278), (416, 52639)]