20729018

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 34587648

約数和(自身を除く): 13858630

約数列:

[1, 2, 17, 31, 34, 62, 71, 142, 277, 527, 554, 1054, 1207, 2201, 2414, 4402, 4709, 8587, 9418, 17174, 19667, 37417, 39334, 74834, 145979, 291958, 334339, 609677, 668678, 1219354, 10364509, 20729018]

約数ペア:

[(1, 20729018), (2, 10364509), (17, 1219354), (31, 668678), (34, 609677), (62, 334339), (71, 291958), (142, 145979), (277, 74834), (527, 39334), (554, 37417), (1054, 19667), (1207, 17174), (2201, 9418), (2414, 8587), (4402, 4709)]