247013145

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11959}}^1$

素因数の和:11996

約数の個数: 48

約数和(自身を含む): 470171520

約数和(自身を除く): 223158375

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 1215, 1377, 2295, 4131, 6885, 11959, 20655, 35877, 59795, 107631, 179385, 203303, 322893, 538155, 609909, 968679, 1016515, 1614465, 1829727, 2906037, 3049545, 4843395, 5489181, 9148635, 14530185, 16467543, 27445905, 49402629, 82337715, 247013145]

約数ペア:

[(1, 247013145), (3, 82337715), (5, 49402629), (9, 27445905), (15, 16467543), (17, 14530185), (27, 9148635), (45, 5489181), (51, 4843395), (81, 3049545), (85, 2906037), (135, 1829727), (153, 1614465), (243, 1016515), (255, 968679), (405, 609909), (459, 538155), (765, 322893), (1215, 203303), (1377, 179385), (2295, 107631), (4131, 59795), (6885, 35877), (11959, 20655)]