21878256

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{11117}}^1$

素因数の和:11169

約数の個数: 40

約数和(自身を含む): 57902544

約数和(自身を除く): 36024288

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 11117, 22234, 33351, 44468, 66702, 88936, 133404, 177872, 266808, 455797, 533616, 911594, 1367391, 1823188, 2734782, 3646376, 5469564, 7292752, 10939128, 21878256]

約数ペア:

[(1, 21878256), (2, 10939128), (3, 7292752), (4, 5469564), (6, 3646376), (8, 2734782), (12, 1823188), (16, 1367391), (24, 911594), (41, 533616), (48, 455797), (82, 266808), (123, 177872), (164, 133404), (246, 88936), (328, 66702), (492, 44468), (656, 33351), (984, 22234), (1968, 11117)]