20721274201

素因数分解:

${\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1\times {\mathrm{26237}}^1$

素因数の和:26664

約数の個数: 16

約数和(自身を含む): 22027325760

約数和(自身を除く): 1306051559

約数列:

[1, 19, 197, 211, 3743, 4009, 26237, 41567, 498503, 789773, 5168689, 5536007, 98205091, 105184133, 1090593379, 20721274201]

約数ペア:

[(1, 20721274201), (19, 1090593379), (197, 105184133), (211, 98205091), (3743, 5536007), (4009, 5168689), (26237, 789773), (41567, 498503)]