20952459

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 36864000

約数和(自身を除く): 15911541

約数列:

[1, 3, 9, 11, 19, 27, 33, 47, 57, 79, 99, 141, 171, 209, 237, 297, 423, 513, 517, 627, 711, 869, 893, 1269, 1501, 1551, 1881, 2133, 2607, 2679, 3713, 4503, 4653, 5643, 7821, 8037, 9823, 11139, 13509, 13959, 16511, 23463, 24111, 29469, 33417, 40527, 40843, 49533, 70547, 88407, 100251, 122529, 148599, 211641, 265221, 367587, 445797, 634923, 776017, 1102761, 1904769, 2328051, 6984153, 20952459]

約数ペア:

[(1, 20952459), (3, 6984153), (9, 2328051), (11, 1904769), (19, 1102761), (27, 776017), (33, 634923), (47, 445797), (57, 367587), (79, 265221), (99, 211641), (141, 148599), (171, 122529), (209, 100251), (237, 88407), (297, 70547), (423, 49533), (513, 40843), (517, 40527), (627, 33417), (711, 29469), (869, 24111), (893, 23463), (1269, 16511), (1501, 13959), (1551, 13509), (1881, 11139), (2133, 9823), (2607, 8037), (2679, 7821), (3713, 5643), (4503, 4653)]