128793609

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{809}}^1$

素因数の和:867

約数の個数: 54

約数和(自身を含む): 228680010

約数和(自身を除く): 99886401

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 361, 399, 441, 809, 931, 1083, 1197, 2427, 2527, 2793, 3249, 5663, 7281, 7581, 8379, 15371, 16989, 17689, 22743, 39641, 46113, 50967, 53067, 107597, 118923, 138339, 159201, 292049, 322791, 356769, 753179, 876147, 968373, 2044343, 2259537, 2628441, 6133029, 6778611, 14310401, 18399087, 42931203, 128793609]

約数ペア:

[(1, 128793609), (3, 42931203), (7, 18399087), (9, 14310401), (19, 6778611), (21, 6133029), (49, 2628441), (57, 2259537), (63, 2044343), (133, 968373), (147, 876147), (171, 753179), (361, 356769), (399, 322791), (441, 292049), (809, 159201), (931, 138339), (1083, 118923), (1197, 107597), (2427, 53067), (2527, 50967), (2793, 46113), (3249, 39641), (5663, 22743), (7281, 17689), (7581, 16989), (8379, 15371)]