28405041

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19051}}^1$

素因数の和:19132

約数の個数: 16

約数和(自身を含む): 43895808

約数和(自身を除く): 15490767

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 19051, 57153, 133357, 400071, 1352621, 4057863, 9468347, 28405041]

約数ペア:

[(1, 28405041), (3, 9468347), (7, 4057863), (21, 1352621), (71, 400071), (213, 133357), (497, 57153), (1491, 19051)]