28209294

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{22073}}^1$

素因数の和:22152

約数の個数: 24

約数和(自身を含む): 61983792

約数和(自身を除く): 33774498

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 22073, 44146, 66219, 132438, 198657, 397314, 1567183, 3134366, 4701549, 9403098, 14104647, 28209294]

約数ペア:

[(1, 28209294), (2, 14104647), (3, 9403098), (6, 4701549), (9, 3134366), (18, 1567183), (71, 397314), (142, 198657), (213, 132438), (426, 66219), (639, 44146), (1278, 22073)]