21421898

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1\times {\mathrm{613}}^1$

素因数の和:889

約数の個数: 16

約数和(自身を含む): 32691816

約数和(自身を除く): 11269918

約数列:

[1, 2, 101, 173, 202, 346, 613, 1226, 17473, 34946, 61913, 106049, 123826, 212098, 10710949, 21421898]

約数ペア:

[(1, 21421898), (2, 10710949), (101, 212098), (173, 123826), (202, 106049), (346, 61913), (613, 34946), (1226, 17473)]