15553215

素因数分解:

$3^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:291

約数の個数: 56

約数和(自身を含む): 29747088

約数和(自身を除く): 14193873

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 251, 255, 405, 459, 729, 753, 765, 1215, 1255, 1377, 2259, 2295, 3645, 3765, 4131, 4267, 6777, 6885, 11295, 12393, 12801, 20331, 20655, 21335, 33885, 38403, 60993, 61965, 64005, 101655, 115209, 182979, 192015, 304965, 345627, 576045, 914895, 1036881, 1728135, 3110643, 5184405, 15553215]

約数ペア:

[(1, 15553215), (3, 5184405), (5, 3110643), (9, 1728135), (15, 1036881), (17, 914895), (27, 576045), (45, 345627), (51, 304965), (81, 192015), (85, 182979), (135, 115209), (153, 101655), (243, 64005), (251, 61965), (255, 60993), (405, 38403), (459, 33885), (729, 21335), (753, 20655), (765, 20331), (1215, 12801), (1255, 12393), (1377, 11295), (2259, 6885), (2295, 6777), (3645, 4267), (3765, 4131)]