209544452

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{309977}}^1$

素因数の和:310007

約数の個数: 18

約数和(自身を含む): 397081818

約数和(自身を除く): 187537366

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 309977, 619954, 1239908, 4029701, 8059402, 16118804, 52386113, 104772226, 209544452]

約数ペア:

[(1, 209544452), (2, 104772226), (4, 52386113), (13, 16118804), (26, 8059402), (52, 4029701), (169, 1239908), (338, 619954), (676, 309977)]