18486273

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 28498176

約数和(自身を除く): 10011903

約数列:

[1, 3, 13, 23, 37, 39, 69, 111, 299, 481, 557, 851, 897, 1443, 1671, 2553, 7241, 11063, 12811, 20609, 21723, 33189, 38433, 61827, 166543, 267917, 474007, 499629, 803751, 1422021, 6162091, 18486273]

約数ペア:

[(1, 18486273), (3, 6162091), (13, 1422021), (23, 803751), (37, 499629), (39, 474007), (69, 267917), (111, 166543), (299, 61827), (481, 38433), (557, 33189), (851, 21723), (897, 20609), (1443, 12811), (1671, 11063), (2553, 7241)]