21263792

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120817}}^1$

素因数の和:120836

約数の個数: 20

約数和(自身を含む): 44944296

約数和(自身を除く): 23680504

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120817, 241634, 483268, 966536, 1328987, 1933072, 2657974, 5315948, 10631896, 21263792]

約数ペア:

[(1, 21263792), (2, 10631896), (4, 5315948), (8, 2657974), (11, 1933072), (16, 1328987), (22, 966536), (44, 483268), (88, 241634), (176, 120817)]