8920821

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{797}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 15015168

約数和(自身を除く): 6094347

約数列:

[1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 797, 861, 1599, 2391, 3731, 5579, 10361, 11193, 16737, 31083, 32677, 72527, 98031, 217581, 228739, 424801, 686217, 1274403, 2973607, 8920821]

約数ペア:

[(1, 8920821), (3, 2973607), (7, 1274403), (13, 686217), (21, 424801), (39, 228739), (41, 217581), (91, 98031), (123, 72527), (273, 32677), (287, 31083), (533, 16737), (797, 11193), (861, 10361), (1599, 5579), (2391, 3731)]