20105638791

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{32713}}^1$

素因数の和:32880

約数の個数: 48

約数和(自身を含む): 32311486944

約数和(自身を除く): 12205848153

約数列:

[1, 3, 7, 21, 37, 49, 111, 113, 147, 259, 339, 777, 791, 1813, 2373, 4181, 5439, 5537, 12543, 16611, 29267, 32713, 87801, 98139, 204869, 228991, 614607, 686973, 1210381, 1602937, 3631143, 3696569, 4808811, 8472667, 11089707, 25418001, 25875983, 59308669, 77627949, 136773053, 177926007, 181131881, 410319159, 543395643, 957411371, 2872234113, 6701879597, 20105638791]

約数ペア:

[(1, 20105638791), (3, 6701879597), (7, 2872234113), (21, 957411371), (37, 543395643), (49, 410319159), (111, 181131881), (113, 177926007), (147, 136773053), (259, 77627949), (339, 59308669), (777, 25875983), (791, 25418001), (1813, 11089707), (2373, 8472667), (4181, 4808811), (5439, 3696569), (5537, 3631143), (12543, 1602937), (16611, 1210381), (29267, 686973), (32713, 614607), (87801, 228991), (98139, 204869)]