21504070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{307201}}^1$

素因数の和:307215

約数の個数: 16

約数和(自身を含む): 44237088

約数和(自身を除く): 22733018

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 307201, 614402, 1536005, 2150407, 3072010, 4300814, 10752035, 21504070]

約数ペア:

[(1, 21504070), (2, 10752035), (5, 4300814), (7, 3072010), (10, 2150407), (14, 1536005), (35, 614402), (70, 307201)]