218717307

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 351436800

約数和(自身を除く): 132719493

約数列:

[1, 3, 9, 27, 31, 43, 59, 93, 103, 129, 177, 279, 309, 387, 531, 837, 927, 1161, 1333, 1593, 1829, 2537, 2781, 3193, 3999, 4429, 5487, 6077, 7611, 9579, 11997, 13287, 16461, 18231, 22833, 28737, 35991, 39861, 49383, 54693, 68499, 78647, 86211, 119583, 137299, 164079, 188387, 235941, 261311, 411897, 565161, 707823, 783933, 1235691, 1695483, 2123469, 2351799, 3707073, 5086449, 7055397, 8100641, 24301923, 72905769, 218717307]

約数ペア:

[(1, 218717307), (3, 72905769), (9, 24301923), (27, 8100641), (31, 7055397), (43, 5086449), (59, 3707073), (93, 2351799), (103, 2123469), (129, 1695483), (177, 1235691), (279, 783933), (309, 707823), (387, 565161), (531, 411897), (837, 261311), (927, 235941), (1161, 188387), (1333, 164079), (1593, 137299), (1829, 119583), (2537, 86211), (2781, 78647), (3193, 68499), (3999, 54693), (4429, 49383), (5487, 39861), (6077, 35991), (7611, 28737), (9579, 22833), (11997, 18231), (13287, 16461)]