21551153

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:416

約数の個数: 16

約数和(自身を含む): 23876160

約数和(自身を除く): 2325007

約数列:

[1, 13, 67, 109, 227, 871, 1417, 2951, 7303, 15209, 24743, 94939, 197717, 321659, 1657781, 21551153]

約数ペア:

[(1, 21551153), (13, 1657781), (67, 321659), (109, 197717), (227, 94939), (871, 24743), (1417, 15209), (2951, 7303)]