21098108

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1249}}^1$

素因数の和:1397

約数の個数: 24

約数和(自身を含む): 38220000

約数和(自身を除く): 17121892

約数列:

[1, 2, 4, 41, 82, 103, 164, 206, 412, 1249, 2498, 4223, 4996, 8446, 16892, 51209, 102418, 128647, 204836, 257294, 514588, 5274527, 10549054, 21098108]

約数ペア:

[(1, 21098108), (2, 10549054), (4, 5274527), (41, 514588), (82, 257294), (103, 204836), (164, 128647), (206, 102418), (412, 51209), (1249, 16892), (2498, 8446), (4223, 4996)]