18939958

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{1301}}^1$

素因数の和:1583

約数の個数: 16

約数和(自身を含む): 29529360

約数和(自身を除く): 10589402

約数列:

[1, 2, 29, 58, 251, 502, 1301, 2602, 7279, 14558, 37729, 75458, 326551, 653102, 9469979, 18939958]

約数ペア:

[(1, 18939958), (2, 9469979), (29, 653102), (58, 326551), (251, 75458), (502, 37729), (1301, 14558), (2602, 7279)]