21665852

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21929}}^1$

素因数の和:21965

約数の個数: 24

約数和(自身を含む): 42982800

約数和(自身を除く): 21316948

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21929, 43858, 87716, 285077, 416651, 570154, 833302, 1140308, 1666604, 5416463, 10832926, 21665852]

約数ペア:

[(1, 21665852), (2, 10832926), (4, 5416463), (13, 1666604), (19, 1140308), (26, 833302), (38, 570154), (52, 416651), (76, 285077), (247, 87716), (494, 43858), (988, 21929)]