21754292161

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1\times {\mathrm{1097}}^1$

素因数の和:1561

約数の個数: 32

約数和(自身を含む): 25456032000

約数和(自身を除く): 3701739839

約数列:

[1, 7, 89, 139, 229, 623, 973, 1097, 1603, 7679, 12371, 20381, 31831, 86597, 97633, 142667, 152483, 222817, 251213, 683431, 1067381, 1758491, 2832959, 13570987, 19830713, 22357957, 34918607, 94996909, 156505699, 244430249, 3107756023, 21754292161]

約数ペア:

[(1, 21754292161), (7, 3107756023), (89, 244430249), (139, 156505699), (229, 94996909), (623, 34918607), (973, 22357957), (1097, 19830713), (1603, 13570987), (7679, 2832959), (12371, 1758491), (20381, 1067381), (31831, 683431), (86597, 251213), (97633, 222817), (142667, 152483)]