20309584

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20809}}^1$

素因数の和:20878

約数の個数: 20

約数和(自身を含む): 39996820

約数和(自身を除く): 19687236

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20809, 41618, 83236, 166472, 332944, 1269349, 2538698, 5077396, 10154792, 20309584]

約数ペア:

[(1, 20309584), (2, 10154792), (4, 5077396), (8, 2538698), (16, 1269349), (61, 332944), (122, 166472), (244, 83236), (488, 41618), (976, 20809)]