30728439

素因数分解:

$3^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1181}}^1$

素因数の和:1260

約数の個数: 36

約数和(自身を含む): 52551720

約数和(自身を除く): 21823281

約数列:

[1, 3, 7, 9, 21, 49, 59, 63, 147, 177, 413, 441, 531, 1181, 1239, 2891, 3543, 3717, 8267, 8673, 10629, 24801, 26019, 57869, 69679, 74403, 173607, 209037, 487753, 520821, 627111, 1463259, 3414271, 4389777, 10242813, 30728439]

約数ペア:

[(1, 30728439), (3, 10242813), (7, 4389777), (9, 3414271), (21, 1463259), (49, 627111), (59, 520821), (63, 487753), (147, 209037), (177, 173607), (413, 74403), (441, 69679), (531, 57869), (1181, 26019), (1239, 24801), (2891, 10629), (3543, 8673), (3717, 8267)]