21472585

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 26453520

約数和(自身を除く): 4980935

約数列:

[1, 5, 73, 89, 365, 445, 661, 3305, 6497, 32485, 48253, 58829, 241265, 294145, 4294517, 21472585]

約数ペア:

[(1, 21472585), (5, 4294517), (73, 294145), (89, 241265), (365, 58829), (445, 48253), (661, 32485), (3305, 6497)]