21019872

素因数分解:

$2^5\times 3^1\times {\mathrm{347}}^1\times {\mathrm{631}}^1$

素因数の和:991

約数の個数: 48

約数和(自身を含む): 55423872

約数和(自身を除く): 34404000

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 347, 631, 694, 1041, 1262, 1388, 1893, 2082, 2524, 2776, 3786, 4164, 5048, 5552, 7572, 8328, 10096, 11104, 15144, 16656, 20192, 30288, 33312, 60576, 218957, 437914, 656871, 875828, 1313742, 1751656, 2627484, 3503312, 5254968, 7006624, 10509936, 21019872]

約数ペア:

[(1, 21019872), (2, 10509936), (3, 7006624), (4, 5254968), (6, 3503312), (8, 2627484), (12, 1751656), (16, 1313742), (24, 875828), (32, 656871), (48, 437914), (96, 218957), (347, 60576), (631, 33312), (694, 30288), (1041, 20192), (1262, 16656), (1388, 15144), (1893, 11104), (2082, 10096), (2524, 8328), (2776, 7572), (3786, 5552), (4164, 5048)]