221344708

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{327433}}^1$

素因数の和:327463

約数の個数: 18

約数和(自身を含む): 419442954

約数和(自身を除く): 198098246

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 327433, 654866, 1309732, 4256629, 8513258, 17026516, 55336177, 110672354, 221344708]

約数ペア:

[(1, 221344708), (2, 110672354), (4, 55336177), (13, 17026516), (26, 8513258), (52, 4256629), (169, 1309732), (338, 654866), (676, 327433)]