727821

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 1145664

約数和(自身を除く): 417843

約数列:

[1, 3, 9, 17, 51, 67, 71, 153, 201, 213, 603, 639, 1139, 1207, 3417, 3621, 4757, 10251, 10863, 14271, 42813, 80869, 242607, 727821]

約数ペア:

[(1, 727821), (3, 242607), (9, 80869), (17, 42813), (51, 14271), (67, 10863), (71, 10251), (153, 4757), (201, 3621), (213, 3417), (603, 1207), (639, 1139)]