21272912

素因数分解:

$2^4\times {\mathrm{239}}^1\times {\mathrm{5563}}^1$

素因数の和:5810

約数の個数: 20

約数和(自身を含む): 41396160

約数和(自身を除く): 20123248

約数列:

[1, 2, 4, 8, 16, 239, 478, 956, 1912, 3824, 5563, 11126, 22252, 44504, 89008, 1329557, 2659114, 5318228, 10636456, 21272912]

約数ペア:

[(1, 21272912), (2, 10636456), (4, 5318228), (8, 2659114), (16, 1329557), (239, 89008), (478, 44504), (956, 22252), (1912, 11126), (3824, 5563)]