20941258

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18731}}^1$

素因数の和:18789

約数の個数: 16

約数和(自身を含む): 34616736

約数和(自身を除く): 13675478

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 18731, 37462, 243503, 487006, 805433, 1610866, 10470629, 20941258]

約数ペア:

[(1, 20941258), (2, 10470629), (13, 1610866), (26, 805433), (43, 487006), (86, 243503), (559, 37462), (1118, 18731)]