21896820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11059}}^1$

素因数の和:11085

約数の個数: 72

約数和(自身を含む): 72465120

約数和(自身を除く): 50568300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 11059, 22118, 33177, 44236, 55295, 66354, 99531, 110590, 121649, 132708, 165885, 199062, 221180, 243298, 331770, 364947, 398124, 486596, 497655, 608245, 663540, 729894, 995310, 1094841, 1216490, 1459788, 1824735, 1990620, 2189682, 2432980, 3649470, 4379364, 5474205, 7298940, 10948410, 21896820]

約数ペア:

[(1, 21896820), (2, 10948410), (3, 7298940), (4, 5474205), (5, 4379364), (6, 3649470), (9, 2432980), (10, 2189682), (11, 1990620), (12, 1824735), (15, 1459788), (18, 1216490), (20, 1094841), (22, 995310), (30, 729894), (33, 663540), (36, 608245), (44, 497655), (45, 486596), (55, 398124), (60, 364947), (66, 331770), (90, 243298), (99, 221180), (110, 199062), (132, 165885), (165, 132708), (180, 121649), (198, 110590), (220, 99531), (330, 66354), (396, 55295), (495, 44236), (660, 33177), (990, 22118), (1980, 11059)]