19500026

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{349}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 36220800

約数和(自身を除く): 16720774

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 307, 349, 614, 698, 2149, 2443, 3991, 4298, 4537, 4886, 7982, 9074, 27937, 31759, 55874, 63518, 107143, 214286, 750001, 1392859, 1500002, 2785718, 9750013, 19500026]

約数ペア:

[(1, 19500026), (2, 9750013), (7, 2785718), (13, 1500002), (14, 1392859), (26, 750001), (91, 214286), (182, 107143), (307, 63518), (349, 55874), (614, 31759), (698, 27937), (2149, 9074), (2443, 7982), (3991, 4886), (4298, 4537)]