21819872

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{16631}}^1$

素因数の和:16682

約数の個数: 24

約数和(自身を含む): 44008272

約数和(自身を除く): 22188400

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 16631, 33262, 66524, 133048, 266096, 532192, 681871, 1363742, 2727484, 5454968, 10909936, 21819872]

約数ペア:

[(1, 21819872), (2, 10909936), (4, 5454968), (8, 2727484), (16, 1363742), (32, 681871), (41, 532192), (82, 266096), (164, 133048), (328, 66524), (656, 33262), (1312, 16631)]