21169458

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:516

約数の個数: 64

約数和(自身を含む): 50688000

約数和(自身を除く): 29518542

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 47, 54, 57, 94, 114, 141, 171, 282, 342, 423, 439, 513, 846, 878, 893, 1026, 1269, 1317, 1786, 2538, 2634, 2679, 3951, 5358, 7902, 8037, 8341, 11853, 16074, 16682, 20633, 23706, 24111, 25023, 41266, 48222, 50046, 61899, 75069, 123798, 150138, 185697, 225207, 371394, 392027, 450414, 557091, 784054, 1114182, 1176081, 2352162, 3528243, 7056486, 10584729, 21169458]

約数ペア:

[(1, 21169458), (2, 10584729), (3, 7056486), (6, 3528243), (9, 2352162), (18, 1176081), (19, 1114182), (27, 784054), (38, 557091), (47, 450414), (54, 392027), (57, 371394), (94, 225207), (114, 185697), (141, 150138), (171, 123798), (282, 75069), (342, 61899), (423, 50046), (439, 48222), (513, 41266), (846, 25023), (878, 24111), (893, 23706), (1026, 20633), (1269, 16682), (1317, 16074), (1786, 11853), (2538, 8341), (2634, 8037), (2679, 7902), (3951, 5358)]