209621373

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{751}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 319882752

約数和(自身を除く): 110261379

約数列:

[1, 3, 13, 17, 39, 51, 221, 421, 663, 751, 1263, 2253, 5473, 7157, 9763, 12767, 16419, 21471, 29289, 38301, 93041, 165971, 279123, 316171, 497913, 948513, 4110223, 5374907, 12330669, 16124721, 69873791, 209621373]

約数ペア:

[(1, 209621373), (3, 69873791), (13, 16124721), (17, 12330669), (39, 5374907), (51, 4110223), (221, 948513), (421, 497913), (663, 316171), (751, 279123), (1263, 165971), (2253, 93041), (5473, 38301), (7157, 29289), (9763, 21471), (12767, 16419)]