18734085

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{907}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 35695296

約数和(自身を除く): 16961211

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 907, 1215, 1377, 2295, 2721, 4131, 4535, 6885, 8163, 13605, 15419, 20655, 24489, 40815, 46257, 73467, 77095, 122445, 138771, 220401, 231285, 367335, 416313, 693855, 1102005, 1248939, 2081565, 3746817, 6244695, 18734085]

約数ペア:

[(1, 18734085), (3, 6244695), (5, 3746817), (9, 2081565), (15, 1248939), (17, 1102005), (27, 693855), (45, 416313), (51, 367335), (81, 231285), (85, 220401), (135, 138771), (153, 122445), (243, 77095), (255, 73467), (405, 46257), (459, 40815), (765, 24489), (907, 20655), (1215, 15419), (1377, 13605), (2295, 8163), (2721, 6885), (4131, 4535)]