2017720971

素因数分解:

$3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{499}}^1$

素因数の和:745

約数の個数: 72

約数和(自身を含む): 3481218000

約数和(自身を除く): 1463497029

約数列:

[1, 3, 7, 9, 21, 49, 53, 63, 147, 159, 173, 371, 441, 477, 499, 519, 1113, 1211, 1497, 1557, 2597, 3339, 3493, 3633, 4491, 7791, 8477, 9169, 10479, 10899, 23373, 24451, 25431, 26447, 27507, 31437, 64183, 73353, 76293, 79341, 82521, 86327, 185129, 192549, 220059, 238023, 258981, 449281, 555387, 577647, 604289, 776943, 1295903, 1347843, 1666161, 1812867, 3887709, 4043529, 4230023, 4575331, 5438601, 11663127, 12690069, 13725993, 32027317, 38070207, 41177979, 96081951, 224191219, 288245853, 672573657, 2017720971]

約数ペア:

[(1, 2017720971), (3, 672573657), (7, 288245853), (9, 224191219), (21, 96081951), (49, 41177979), (53, 38070207), (63, 32027317), (147, 13725993), (159, 12690069), (173, 11663127), (371, 5438601), (441, 4575331), (477, 4230023), (499, 4043529), (519, 3887709), (1113, 1812867), (1211, 1666161), (1497, 1347843), (1557, 1295903), (2597, 776943), (3339, 604289), (3493, 577647), (3633, 555387), (4491, 449281), (7791, 258981), (8477, 238023), (9169, 220059), (10479, 192549), (10899, 185129), (23373, 86327), (24451, 82521), (25431, 79341), (26447, 76293), (27507, 73353), (31437, 64183)]