21375616

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5387}}^1$

素因数の和:5432

約数の個数: 32

約数和(自身を含む): 43966080

約数和(自身を除く): 22590464

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5387, 10774, 21548, 43096, 86192, 166997, 172384, 333994, 344768, 667988, 689536, 1335976, 2671952, 5343904, 10687808, 21375616]

約数ペア:

[(1, 21375616), (2, 10687808), (4, 5343904), (8, 2671952), (16, 1335976), (31, 689536), (32, 667988), (62, 344768), (64, 333994), (124, 172384), (128, 166997), (248, 86192), (496, 43096), (992, 21548), (1984, 10774), (3968, 5387)]