28774588

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{19927}}^1$

素因数の和:19969

約数の個数: 18

約数和(自身を含む): 53147976

約数和(自身を除く): 24373388

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 19927, 39854, 79708, 378613, 757226, 1514452, 7193647, 14387294, 28774588]

約数ペア:

[(1, 28774588), (2, 14387294), (4, 7193647), (19, 1514452), (38, 757226), (76, 378613), (361, 79708), (722, 39854), (1444, 19927)]