20597577

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^3$

素因数の和:91

約数の個数: 64

約数和(自身を含む): 38922240

約数和(自身を除く): 18324663

約数列:

[1, 3, 7, 11, 13, 19, 21, 33, 39, 57, 77, 91, 133, 143, 209, 231, 247, 273, 361, 399, 429, 627, 741, 1001, 1083, 1463, 1729, 2527, 2717, 3003, 3971, 4389, 4693, 5187, 6859, 7581, 8151, 11913, 14079, 19019, 20577, 27797, 32851, 48013, 51623, 57057, 75449, 83391, 89167, 98553, 144039, 154869, 226347, 267501, 361361, 528143, 624169, 980837, 1084083, 1584429, 1872507, 2942511, 6865859, 20597577]

約数ペア:

[(1, 20597577), (3, 6865859), (7, 2942511), (11, 1872507), (13, 1584429), (19, 1084083), (21, 980837), (33, 624169), (39, 528143), (57, 361361), (77, 267501), (91, 226347), (133, 154869), (143, 144039), (209, 98553), (231, 89167), (247, 83391), (273, 75449), (361, 57057), (399, 51623), (429, 48013), (627, 32851), (741, 27797), (1001, 20577), (1083, 19019), (1463, 14079), (1729, 11913), (2527, 8151), (2717, 7581), (3003, 6859), (3971, 5187), (4389, 4693)]