20178855903

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{1279}}^1\times {\mathrm{1669}}^1$

素因数の和:3111

約数の個数: 32

約数和(自身を含む): 28318924800

約数和(自身を除く): 8140068897

約数列:

[1, 3, 23, 69, 137, 411, 1279, 1669, 3151, 3837, 5007, 9453, 29417, 38387, 88251, 115161, 175223, 228653, 525669, 685959, 2134651, 4030129, 5259019, 6403953, 12090387, 15777057, 49096973, 147290919, 292447187, 877341561, 6726285301, 20178855903]

約数ペア:

[(1, 20178855903), (3, 6726285301), (23, 877341561), (69, 292447187), (137, 147290919), (411, 49096973), (1279, 15777057), (1669, 12090387), (3151, 6403953), (3837, 5259019), (5007, 4030129), (9453, 2134651), (29417, 685959), (38387, 525669), (88251, 228653), (115161, 175223)]