1900903887

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{28001}}^1$

素因数の和:28423

約数の個数: 24

約数和(自身を含む): 2897646960

約数和(自身を除く): 996743073

約数列:

[1, 3, 9, 19, 57, 171, 397, 1191, 3573, 7543, 22629, 28001, 67887, 84003, 252009, 532019, 1596057, 4788171, 11116397, 33349191, 100047573, 211211543, 633634629, 1900903887]

約数ペア:

[(1, 1900903887), (3, 633634629), (9, 211211543), (19, 100047573), (57, 33349191), (171, 11116397), (397, 4788171), (1191, 1596057), (3573, 532019), (7543, 252009), (22629, 84003), (28001, 67887)]