21470217

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{479}}^1$

素因数の和:772

約数の個数: 16

約数和(自身を含む): 29245440

約数和(自身を除く): 7775223

約数列:

[1, 3, 67, 201, 223, 479, 669, 1437, 14941, 32093, 44823, 96279, 106817, 320451, 7156739, 21470217]

約数ペア:

[(1, 21470217), (3, 7156739), (67, 320451), (201, 106817), (223, 96279), (479, 44823), (669, 32093), (1437, 14941)]