20626695

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 38581920

約数和(自身を除く): 17955225

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 59, 85, 153, 177, 255, 295, 457, 531, 765, 885, 1003, 1371, 2285, 2655, 3009, 4113, 5015, 6855, 7769, 9027, 15045, 20565, 23307, 26963, 38845, 45135, 69921, 80889, 116535, 134815, 242667, 349605, 404445, 458371, 1213335, 1375113, 2291855, 4125339, 6875565, 20626695]

約数ペア:

[(1, 20626695), (3, 6875565), (5, 4125339), (9, 2291855), (15, 1375113), (17, 1213335), (45, 458371), (51, 404445), (59, 349605), (85, 242667), (153, 134815), (177, 116535), (255, 80889), (295, 69921), (457, 45135), (531, 38845), (765, 26963), (885, 23307), (1003, 20565), (1371, 15045), (2285, 9027), (2655, 7769), (3009, 6855), (4113, 5015)]