20145309849

素因数分解:

$3^4\times 7^1\times {\mathrm{127}}^1\times {\mathrm{279761}}^1$

素因数の和:279907

約数の個数: 40

約数和(自身を含む): 34663630848

約数和(自身を除く): 14518320999

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 127, 189, 381, 567, 889, 1143, 2667, 3429, 8001, 10287, 24003, 72009, 279761, 839283, 1958327, 2517849, 5874981, 7553547, 17624943, 22660641, 35529647, 52874829, 106588941, 158624487, 248707529, 319766823, 746122587, 959300469, 2238367761, 2877901407, 6715103283, 20145309849]

約数ペア:

[(1, 20145309849), (3, 6715103283), (7, 2877901407), (9, 2238367761), (21, 959300469), (27, 746122587), (63, 319766823), (81, 248707529), (127, 158624487), (189, 106588941), (381, 52874829), (567, 35529647), (889, 22660641), (1143, 17624943), (2667, 7553547), (3429, 5874981), (8001, 2517849), (10287, 1958327), (24003, 839283), (72009, 279761)]