21319473

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{17207}}^1$

素因数の和:17276

約数の個数: 16

約数和(自身を含む): 33039360

約数和(自身を除く): 11719887

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 17207, 51621, 120449, 361347, 1015213, 3045639, 7106491, 21319473]

約数ペア:

[(1, 21319473), (3, 7106491), (7, 3045639), (21, 1015213), (59, 361347), (177, 120449), (413, 51621), (1239, 17207)]