21803253

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{647}}^1$

素因数の和:936

約数の個数: 16

約数和(自身を含む): 29859840

約数和(自身を除く): 8056587

約数列:

[1, 3, 47, 141, 239, 647, 717, 1941, 11233, 30409, 33699, 91227, 154633, 463899, 7267751, 21803253]

約数ペア:

[(1, 21803253), (3, 7267751), (47, 463899), (141, 154633), (239, 91227), (647, 33699), (717, 30409), (1941, 11233)]