15745821

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 26089728

約数和(自身を除く): 10343907

約数列:

[1, 3, 7, 13, 21, 39, 91, 137, 273, 411, 421, 959, 1263, 1781, 2877, 2947, 5343, 5473, 8841, 12467, 16419, 37401, 38311, 57677, 114933, 173031, 403739, 749801, 1211217, 2249403, 5248607, 15745821]

約数ペア:

[(1, 15745821), (3, 5248607), (7, 2249403), (13, 1211217), (21, 749801), (39, 403739), (91, 173031), (137, 114933), (273, 57677), (411, 38311), (421, 37401), (959, 16419), (1263, 12467), (1781, 8841), (2877, 5473), (2947, 5343)]