21368463

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{1097}}^1$

素因数の和:1294

約数の個数: 16

約数和(自身を含む): 29373696

約数和(自身を除く): 8005233

約数列:

[1, 3, 43, 129, 151, 453, 1097, 3291, 6493, 19479, 47171, 141513, 165647, 496941, 7122821, 21368463]

約数ペア:

[(1, 21368463), (3, 7122821), (43, 496941), (129, 165647), (151, 141513), (453, 47171), (1097, 19479), (3291, 6493)]