21656704

素因数分解:

$2^7\times {\mathrm{71}}^1\times {\mathrm{2383}}^1$

素因数の和:2468

約数の個数: 32

約数和(自身を含む): 43770240

約数和(自身を除く): 22113536

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 284, 568, 1136, 2272, 2383, 4544, 4766, 9088, 9532, 19064, 38128, 76256, 152512, 169193, 305024, 338386, 676772, 1353544, 2707088, 5414176, 10828352, 21656704]

約数ペア:

[(1, 21656704), (2, 10828352), (4, 5414176), (8, 2707088), (16, 1353544), (32, 676772), (64, 338386), (71, 305024), (128, 169193), (142, 152512), (284, 76256), (568, 38128), (1136, 19064), (2272, 9532), (2383, 9088), (4544, 4766)]