21107342

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{5581}}^1$

素因数の和:5675

約数の個数: 16

約数和(自身を含む): 33224064

約数和(自身を除く): 12116722

約数列:

[1, 2, 31, 61, 62, 122, 1891, 3782, 5581, 11162, 173011, 340441, 346022, 680882, 10553671, 21107342]

約数ペア:

[(1, 21107342), (2, 10553671), (31, 680882), (61, 346022), (62, 340441), (122, 173011), (1891, 11162), (3782, 5581)]