21551648

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 45382680

約数和(自身を除く): 23831032

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 173, 229, 272, 346, 458, 544, 692, 916, 1384, 1832, 2768, 2941, 3664, 3893, 5536, 5882, 7328, 7786, 11764, 15572, 23528, 31144, 39617, 47056, 62288, 79234, 94112, 124576, 158468, 316936, 633872, 673489, 1267744, 1346978, 2693956, 5387912, 10775824, 21551648]

約数ペア:

[(1, 21551648), (2, 10775824), (4, 5387912), (8, 2693956), (16, 1346978), (17, 1267744), (32, 673489), (34, 633872), (68, 316936), (136, 158468), (173, 124576), (229, 94112), (272, 79234), (346, 62288), (458, 47056), (544, 39617), (692, 31144), (916, 23528), (1384, 15572), (1832, 11764), (2768, 7786), (2941, 7328), (3664, 5882), (3893, 5536)]