21359565

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:299

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 20008755

約数列:

[1, 3, 5, 9, 15, 17, 27, 41, 45, 51, 85, 123, 135, 153, 205, 227, 255, 369, 459, 615, 681, 697, 765, 1107, 1135, 1845, 2043, 2091, 2295, 3405, 3485, 3859, 5535, 6129, 6273, 9307, 10215, 10455, 11577, 18819, 19295, 27921, 30645, 31365, 34731, 46535, 57885, 83763, 94095, 104193, 139605, 158219, 173655, 251289, 418815, 474657, 520965, 791095, 1256445, 1423971, 2373285, 4271913, 7119855, 21359565]

約数ペア:

[(1, 21359565), (3, 7119855), (5, 4271913), (9, 2373285), (15, 1423971), (17, 1256445), (27, 791095), (41, 520965), (45, 474657), (51, 418815), (85, 251289), (123, 173655), (135, 158219), (153, 139605), (205, 104193), (227, 94095), (255, 83763), (369, 57885), (459, 46535), (615, 34731), (681, 31365), (697, 30645), (765, 27921), (1107, 19295), (1135, 18819), (1845, 11577), (2043, 10455), (2091, 10215), (2295, 9307), (3405, 6273), (3485, 6129), (3859, 5535)]