21697299

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3499}}^1$

素因数の和:3571

約数の個数: 24

約数和(自身を含む): 34398000

約数和(自身を除く): 12700701

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3499, 6201, 10497, 31491, 45487, 136461, 185447, 409383, 556341, 1669023, 2410811, 7232433, 21697299]

約数ペア:

[(1, 21697299), (3, 7232433), (9, 2410811), (13, 1669023), (39, 556341), (53, 409383), (117, 185447), (159, 136461), (477, 45487), (689, 31491), (2067, 10497), (3499, 6201)]