19105779

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 32754176

約数和(自身を除く): 13648397

約数列:

[1, 3, 7, 11, 21, 33, 73, 77, 103, 121, 219, 231, 309, 363, 511, 721, 803, 847, 1133, 1533, 2163, 2409, 2541, 3399, 5621, 7519, 7931, 8833, 12463, 16863, 22557, 23793, 26499, 37389, 52633, 61831, 82709, 87241, 157899, 185493, 248127, 261723, 578963, 909799, 1736889, 2729397, 6368593, 19105779]

約数ペア:

[(1, 19105779), (3, 6368593), (7, 2729397), (11, 1736889), (21, 909799), (33, 578963), (73, 261723), (77, 248127), (103, 185493), (121, 157899), (219, 87241), (231, 82709), (309, 61831), (363, 52633), (511, 37389), (721, 26499), (803, 23793), (847, 22557), (1133, 16863), (1533, 12463), (2163, 8833), (2409, 7931), (2541, 7519), (3399, 5621)]