21357070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{305101}}^1$

素因数の和:305115

約数の個数: 16

約数和(自身を含む): 43934688

約数和(自身を除く): 22577618

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 305101, 610202, 1525505, 2135707, 3051010, 4271414, 10678535, 21357070]

約数ペア:

[(1, 21357070), (2, 10678535), (5, 4271414), (7, 3051010), (10, 2135707), (14, 1525505), (35, 610202), (70, 305101)]