28756539

素因数分解:

$3^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1237}}^1$

素因数の和:1297

約数の個数: 40

約数和(自身を含む): 50332128

約数和(自身を除く): 21575589

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 81, 123, 189, 287, 369, 567, 861, 1107, 1237, 2583, 3321, 3711, 7749, 8659, 11133, 23247, 25977, 33399, 50717, 77931, 100197, 152151, 233793, 355019, 456453, 701379, 1065057, 1369359, 3195171, 4108077, 9585513, 28756539]

約数ペア:

[(1, 28756539), (3, 9585513), (7, 4108077), (9, 3195171), (21, 1369359), (27, 1065057), (41, 701379), (63, 456453), (81, 355019), (123, 233793), (189, 152151), (287, 100197), (369, 77931), (567, 50717), (861, 33399), (1107, 25977), (1237, 23247), (2583, 11133), (3321, 8659), (3711, 7749)]