21117756

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1019}}^1$

素因数の和:1194

約数の個数: 48

約数和(自身を含む): 54149760

約数和(自身を除く): 33032004

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 157, 314, 471, 628, 942, 1019, 1727, 1884, 2038, 3057, 3454, 4076, 5181, 6114, 6908, 10362, 11209, 12228, 20724, 22418, 33627, 44836, 67254, 134508, 159983, 319966, 479949, 639932, 959898, 1759813, 1919796, 3519626, 5279439, 7039252, 10558878, 21117756]

約数ペア:

[(1, 21117756), (2, 10558878), (3, 7039252), (4, 5279439), (6, 3519626), (11, 1919796), (12, 1759813), (22, 959898), (33, 639932), (44, 479949), (66, 319966), (132, 159983), (157, 134508), (314, 67254), (471, 44836), (628, 33627), (942, 22418), (1019, 20724), (1727, 12228), (1884, 11209), (2038, 10362), (3057, 6908), (3454, 6114), (4076, 5181)]