21195268

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:567

約数の個数: 24

約数和(自身を含む): 37782360

約数和(自身を除く): 16587092

約数列:

[1, 2, 4, 109, 173, 218, 281, 346, 436, 562, 692, 1124, 18857, 30629, 37714, 48613, 61258, 75428, 97226, 122516, 194452, 5298817, 10597634, 21195268]

約数ペア:

[(1, 21195268), (2, 10597634), (4, 5298817), (109, 194452), (173, 122516), (218, 97226), (281, 75428), (346, 61258), (436, 48613), (562, 37714), (692, 30629), (1124, 18857)]