21086523

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{389}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 32245200

約数和(自身を除く): 11158677

約数列:

[1, 3, 9, 19, 57, 171, 317, 389, 951, 1167, 2853, 3501, 6023, 7391, 18069, 22173, 54207, 66519, 123313, 369939, 1109817, 2342947, 7028841, 21086523]

約数ペア:

[(1, 21086523), (3, 7028841), (9, 2342947), (19, 1109817), (57, 369939), (171, 123313), (317, 66519), (389, 54207), (951, 22173), (1167, 18069), (2853, 7391), (3501, 6023)]