221489294

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{1087}}^1$

素因数の和:1580

約数の個数: 32

約数和(自身を含む): 380007936

約数和(自身を除く): 158518642

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 461, 922, 1087, 2174, 5993, 7837, 11986, 14131, 15674, 18479, 28262, 36958, 101881, 203762, 240227, 480454, 501107, 1002214, 6514391, 8518819, 13028782, 17037638, 110744647, 221489294]

約数ペア:

[(1, 221489294), (2, 110744647), (13, 17037638), (17, 13028782), (26, 8518819), (34, 6514391), (221, 1002214), (442, 501107), (461, 480454), (922, 240227), (1087, 203762), (2174, 101881), (5993, 36958), (7837, 28262), (11986, 18479), (14131, 15674)]