20512157883

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{32353}}^1$

素因数の和:32616

約数の個数: 48

約数和(自身を含む): 33637806720

約数和(自身を除く): 13125648837

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 227, 399, 681, 931, 1589, 2793, 4313, 4767, 11123, 12939, 30191, 32353, 33369, 90573, 97059, 211337, 226471, 614707, 634011, 679413, 1585297, 1844121, 4302949, 4755891, 7344131, 12908847, 22032393, 30120643, 51408917, 90361929, 139538489, 154226751, 359862419, 418615467, 976769423, 1079587257, 2930308269, 6837385961, 20512157883]

約数ペア:

[(1, 20512157883), (3, 6837385961), (7, 2930308269), (19, 1079587257), (21, 976769423), (49, 418615467), (57, 359862419), (133, 154226751), (147, 139538489), (227, 90361929), (399, 51408917), (681, 30120643), (931, 22032393), (1589, 12908847), (2793, 7344131), (4313, 4755891), (4767, 4302949), (11123, 1844121), (12939, 1585297), (30191, 679413), (32353, 634011), (33369, 614707), (90573, 226471), (97059, 211337)]