20452458

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{997}}^1$

素因数の和:1278

約数の個数: 32

約数和(自身を含む): 44263296

約数和(自身を除く): 23810838

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 263, 526, 789, 997, 1578, 1994, 2991, 3419, 5982, 6838, 10257, 12961, 20514, 25922, 38883, 77766, 262211, 524422, 786633, 1573266, 3408743, 6817486, 10226229, 20452458]

約数ペア:

[(1, 20452458), (2, 10226229), (3, 6817486), (6, 3408743), (13, 1573266), (26, 786633), (39, 524422), (78, 262211), (263, 77766), (526, 38883), (789, 25922), (997, 20514), (1578, 12961), (1994, 10257), (2991, 6838), (3419, 5982)]