20309157

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:159

約数の個数: 64

約数和(自身を含む): 35712000

約数和(自身を除く): 15402843

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 59, 61, 99, 171, 177, 183, 209, 297, 513, 531, 549, 627, 649, 671, 1121, 1159, 1593, 1647, 1881, 1947, 2013, 3363, 3477, 3599, 5643, 5841, 6039, 10089, 10431, 10797, 12331, 12749, 17523, 18117, 30267, 31293, 32391, 36993, 38247, 39589, 68381, 97173, 110979, 114741, 118767, 205143, 332937, 344223, 356301, 615429, 752191, 1068903, 1846287, 2256573, 6769719, 20309157]

約数ペア:

[(1, 20309157), (3, 6769719), (9, 2256573), (11, 1846287), (19, 1068903), (27, 752191), (33, 615429), (57, 356301), (59, 344223), (61, 332937), (99, 205143), (171, 118767), (177, 114741), (183, 110979), (209, 97173), (297, 68381), (513, 39589), (531, 38247), (549, 36993), (627, 32391), (649, 31293), (671, 30267), (1121, 18117), (1159, 17523), (1593, 12749), (1647, 12331), (1881, 10797), (1947, 10431), (2013, 10089), (3363, 6039), (3477, 5841), (3599, 5643)]