21371384

素因数分解:

$2^3\times {\mathrm{653}}^1\times {\mathrm{4091}}^1$

素因数の和:4750

約数の個数: 16

約数和(自身を含む): 40142520

約数和(自身を除く): 18771136

約数列:

[1, 2, 4, 8, 653, 1306, 2612, 4091, 5224, 8182, 16364, 32728, 2671423, 5342846, 10685692, 21371384]

約数ペア:

[(1, 21371384), (2, 10685692), (4, 5342846), (8, 2671423), (653, 32728), (1306, 16364), (2612, 8182), (4091, 5224)]