2688309

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:88

約数の個数: 48

約数和(自身を含む): 4647552

約数和(自身を除く): 1959243

約数列:

[1, 3, 9, 13, 23, 27, 37, 39, 69, 81, 111, 117, 207, 243, 299, 333, 351, 481, 621, 851, 897, 999, 1053, 1443, 1863, 2553, 2691, 2997, 3159, 4329, 5589, 7659, 8073, 8991, 11063, 12987, 22977, 24219, 33189, 38961, 68931, 72657, 99567, 116883, 206793, 298701, 896103, 2688309]

約数ペア:

[(1, 2688309), (3, 896103), (9, 298701), (13, 206793), (23, 116883), (27, 99567), (37, 72657), (39, 68931), (69, 38961), (81, 33189), (111, 24219), (117, 22977), (207, 12987), (243, 11063), (299, 8991), (333, 8073), (351, 7659), (481, 5589), (621, 4329), (851, 3159), (897, 2997), (999, 2691), (1053, 2553), (1443, 1863)]