21152924

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2591}}^1$

素因数の和:2765

約数の個数: 24

約数和(自身を含む): 40134528

約数和(自身を除く): 18981604

約数列:

[1, 2, 4, 13, 26, 52, 157, 314, 628, 2041, 2591, 4082, 5182, 8164, 10364, 33683, 67366, 134732, 406787, 813574, 1627148, 5288231, 10576462, 21152924]

約数ペア:

[(1, 21152924), (2, 10576462), (4, 5288231), (13, 1627148), (26, 813574), (52, 406787), (157, 134732), (314, 67366), (628, 33683), (2041, 10364), (2591, 8164), (4082, 5182)]