21946168

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 42514560

約数和(自身を除く): 20568392

約数列:

[1, 2, 4, 8, 43, 86, 131, 172, 262, 344, 487, 524, 974, 1048, 1948, 3896, 5633, 11266, 20941, 22532, 41882, 45064, 63797, 83764, 127594, 167528, 255188, 510376, 2743271, 5486542, 10973084, 21946168]

約数ペア:

[(1, 21946168), (2, 10973084), (4, 5486542), (8, 2743271), (43, 510376), (86, 255188), (131, 167528), (172, 127594), (262, 83764), (344, 63797), (487, 45064), (524, 41882), (974, 22532), (1048, 20941), (1948, 11266), (3896, 5633)]