21284046

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{137}}^2$

素因数の和:295

約数の個数: 60

約数和(自身を含む): 54905928

約数和(自身を除く): 33621882

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 137, 162, 189, 274, 378, 411, 567, 822, 959, 1134, 1233, 1918, 2466, 2877, 3699, 5754, 7398, 8631, 11097, 17262, 18769, 22194, 25893, 37538, 51786, 56307, 77679, 112614, 131383, 155358, 168921, 262766, 337842, 394149, 506763, 788298, 1013526, 1182447, 1520289, 2364894, 3040578, 3547341, 7094682, 10642023, 21284046]

約数ペア:

[(1, 21284046), (2, 10642023), (3, 7094682), (6, 3547341), (7, 3040578), (9, 2364894), (14, 1520289), (18, 1182447), (21, 1013526), (27, 788298), (42, 506763), (54, 394149), (63, 337842), (81, 262766), (126, 168921), (137, 155358), (162, 131383), (189, 112614), (274, 77679), (378, 56307), (411, 51786), (567, 37538), (822, 25893), (959, 22194), (1134, 18769), (1233, 17262), (1918, 11097), (2466, 8631), (2877, 7398), (3699, 5754)]