21193208

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139429}}^1$

素因数の和:139454

約数の個数: 16

約数和(自身を含む): 41829000

約数和(自身を除く): 20635792

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 139429, 278858, 557716, 1115432, 2649151, 5298302, 10596604, 21193208]

約数ペア:

[(1, 21193208), (2, 10596604), (4, 5298302), (8, 2649151), (19, 1115432), (38, 557716), (76, 278858), (152, 139429)]