19854045

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 38465280

約数和(自身を除く): 18611235

約数列:

[1, 3, 5, 9, 15, 17, 27, 41, 45, 51, 85, 123, 135, 153, 205, 211, 255, 369, 459, 615, 633, 697, 765, 1055, 1107, 1845, 1899, 2091, 2295, 3165, 3485, 3587, 5535, 5697, 6273, 8651, 9495, 10455, 10761, 17935, 18819, 25953, 28485, 31365, 32283, 43255, 53805, 77859, 94095, 96849, 129765, 147067, 161415, 233577, 389295, 441201, 484245, 735335, 1167885, 1323603, 2206005, 3970809, 6618015, 19854045]

約数ペア:

[(1, 19854045), (3, 6618015), (5, 3970809), (9, 2206005), (15, 1323603), (17, 1167885), (27, 735335), (41, 484245), (45, 441201), (51, 389295), (85, 233577), (123, 161415), (135, 147067), (153, 129765), (205, 96849), (211, 94095), (255, 77859), (369, 53805), (459, 43255), (615, 32283), (633, 31365), (697, 28485), (765, 25953), (1055, 18819), (1107, 17935), (1845, 10761), (1899, 10455), (2091, 9495), (2295, 8651), (3165, 6273), (3485, 5697), (3587, 5535)]