17970705

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 15051375

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 97, 115, 179, 207, 291, 345, 485, 537, 873, 895, 1035, 1455, 1611, 2231, 2685, 4117, 4365, 6693, 8055, 11155, 12351, 17363, 20079, 20585, 33465, 37053, 52089, 61755, 86815, 100395, 156267, 185265, 260445, 399349, 781335, 1198047, 1996745, 3594141, 5990235, 17970705]

約数ペア:

[(1, 17970705), (3, 5990235), (5, 3594141), (9, 1996745), (15, 1198047), (23, 781335), (45, 399349), (69, 260445), (97, 185265), (115, 156267), (179, 100395), (207, 86815), (291, 61755), (345, 52089), (485, 37053), (537, 33465), (873, 20585), (895, 20079), (1035, 17363), (1455, 12351), (1611, 11155), (2231, 8055), (2685, 6693), (4117, 4365)]