28505187

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1873}}^1$

素因数の和:1987

約数の個数: 24

約数和(自身を含む): 43851600

約数和(自身を除く): 15346413

約数列:

[1, 3, 9, 19, 57, 89, 171, 267, 801, 1691, 1873, 5073, 5619, 15219, 16857, 35587, 106761, 166697, 320283, 500091, 1500273, 3167243, 9501729, 28505187]

約数ペア:

[(1, 28505187), (3, 9501729), (9, 3167243), (19, 1500273), (57, 500091), (89, 320283), (171, 166697), (267, 106761), (801, 35587), (1691, 16857), (1873, 15219), (5073, 5619)]