28121463

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3499}}^1$

素因数の和:3571

約数の個数: 24

約数和(自身を含む): 43680000

約数和(自身を除く): 15558537

約数列:

[1, 3, 9, 19, 47, 57, 141, 171, 423, 893, 2679, 3499, 8037, 10497, 31491, 66481, 164453, 199443, 493359, 598329, 1480077, 3124607, 9373821, 28121463]

約数ペア:

[(1, 28121463), (3, 9373821), (9, 3124607), (19, 1480077), (47, 598329), (57, 493359), (141, 199443), (171, 164453), (423, 66481), (893, 31491), (2679, 10497), (3499, 8037)]