19778806

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{5407}}^1$

素因数の和:5499

約数の個数: 16

約数和(自身を含む): 31150080

約数和(自身を除く): 11371274

約数列:

[1, 2, 31, 59, 62, 118, 1829, 3658, 5407, 10814, 167617, 319013, 335234, 638026, 9889403, 19778806]

約数ペア:

[(1, 19778806), (2, 9889403), (31, 638026), (59, 335234), (62, 319013), (118, 167617), (1829, 10814), (3658, 5407)]