19540455

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 37601280

約数和(自身を除く): 18060825

約数列:

[1, 3, 5, 11, 15, 19, 23, 33, 55, 57, 69, 95, 115, 165, 209, 253, 271, 285, 345, 437, 627, 759, 813, 1045, 1265, 1311, 1355, 2185, 2981, 3135, 3795, 4065, 4807, 5149, 6233, 6555, 8943, 14421, 14905, 15447, 18699, 24035, 25745, 31165, 44715, 56639, 68563, 72105, 77235, 93495, 118427, 169917, 205689, 283195, 342815, 355281, 592135, 849585, 1028445, 1302697, 1776405, 3908091, 6513485, 19540455]

約数ペア:

[(1, 19540455), (3, 6513485), (5, 3908091), (11, 1776405), (15, 1302697), (19, 1028445), (23, 849585), (33, 592135), (55, 355281), (57, 342815), (69, 283195), (95, 205689), (115, 169917), (165, 118427), (209, 93495), (253, 77235), (271, 72105), (285, 68563), (345, 56639), (437, 44715), (627, 31165), (759, 25745), (813, 24035), (1045, 18699), (1265, 15447), (1311, 14905), (1355, 14421), (2185, 8943), (2981, 6555), (3135, 6233), (3795, 5149), (4065, 4807)]