20651796711

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{189593}}^1$

素因数の和:189645

約数の個数: 72

約数和(自身を含む): 39336963120

約数和(自身を除く): 18685166409

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 49, 57, 63, 91, 117, 133, 147, 171, 247, 273, 399, 441, 637, 741, 819, 931, 1197, 1729, 1911, 2223, 2793, 5187, 5733, 8379, 12103, 15561, 36309, 108927, 189593, 568779, 1327151, 1706337, 2464709, 3602267, 3981453, 7394127, 9290057, 10806801, 11944359, 17252963, 22182381, 25215869, 27870171, 32420403, 46829471, 51758889, 75647607, 83610513, 120770741, 140488413, 155276667, 176511083, 226942821, 327806297, 362312223, 421465239, 529533249, 983418891, 1086936669, 1588599747, 2294644079, 2950256673, 6883932237, 20651796711]

約数ペア:

[(1, 20651796711), (3, 6883932237), (7, 2950256673), (9, 2294644079), (13, 1588599747), (19, 1086936669), (21, 983418891), (39, 529533249), (49, 421465239), (57, 362312223), (63, 327806297), (91, 226942821), (117, 176511083), (133, 155276667), (147, 140488413), (171, 120770741), (247, 83610513), (273, 75647607), (399, 51758889), (441, 46829471), (637, 32420403), (741, 27870171), (819, 25215869), (931, 22182381), (1197, 17252963), (1729, 11944359), (1911, 10806801), (2223, 9290057), (2793, 7394127), (5187, 3981453), (5733, 3602267), (8379, 2464709), (12103, 1706337), (15561, 1327151), (36309, 568779), (108927, 189593)]