20521722

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{857}}^1$

素因数の和:1182

約数の個数: 32

約数和(自身を含む): 44396352

約数和(自身を除く): 23874630

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 307, 614, 857, 921, 1714, 1842, 2571, 3991, 5142, 7982, 11141, 11973, 22282, 23946, 33423, 66846, 263099, 526198, 789297, 1578594, 3420287, 6840574, 10260861, 20521722]

約数ペア:

[(1, 20521722), (2, 10260861), (3, 6840574), (6, 3420287), (13, 1578594), (26, 789297), (39, 526198), (78, 263099), (307, 66846), (614, 33423), (857, 23946), (921, 22282), (1714, 11973), (1842, 11141), (2571, 7982), (3991, 5142)]