21000700070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{300010001}}^1$

素因数の和:300010015

約数の個数: 16

約数和(自身を含む): 43201440288

約数和(自身を除く): 22200740218

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 300010001, 600020002, 1500050005, 2100070007, 3000100010, 4200140014, 10500350035, 21000700070]

約数ペア:

[(1, 21000700070), (2, 10500350035), (5, 4200140014), (7, 3000100010), (10, 2100070007), (14, 1500050005), (35, 600020002), (70, 300010001)]