231439551

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 389022720

約数和(自身を除く): 157583169

約数列:

[1, 3, 7, 19, 21, 37, 57, 61, 111, 133, 183, 257, 259, 399, 427, 703, 771, 777, 1159, 1281, 1799, 2109, 2257, 3477, 4883, 4921, 5397, 6771, 8113, 9509, 14649, 14763, 15677, 15799, 24339, 28527, 34181, 42883, 47031, 47397, 66563, 102543, 109739, 128649, 180671, 199689, 297863, 300181, 329217, 542013, 580049, 893589, 900543, 1264697, 1740147, 2085041, 3794091, 4060343, 6255123, 11020931, 12181029, 33062793, 77146517, 231439551]

約数ペア:

[(1, 231439551), (3, 77146517), (7, 33062793), (19, 12181029), (21, 11020931), (37, 6255123), (57, 4060343), (61, 3794091), (111, 2085041), (133, 1740147), (183, 1264697), (257, 900543), (259, 893589), (399, 580049), (427, 542013), (703, 329217), (771, 300181), (777, 297863), (1159, 199689), (1281, 180671), (1799, 128649), (2109, 109739), (2257, 102543), (3477, 66563), (4883, 47397), (4921, 47031), (5397, 42883), (6771, 34181), (8113, 28527), (9509, 24339), (14649, 15799), (14763, 15677)]