21069550

素因数分解:

$2^1\times 5^2\times {\mathrm{83}}^1\times {\mathrm{5077}}^1$

素因数の和:5172

約数の個数: 24

約数和(自身を含む): 39669336

約数和(自身を除く): 18599786

約数列:

[1, 2, 5, 10, 25, 50, 83, 166, 415, 830, 2075, 4150, 5077, 10154, 25385, 50770, 126925, 253850, 421391, 842782, 2106955, 4213910, 10534775, 21069550]

約数ペア:

[(1, 21069550), (2, 10534775), (5, 4213910), (10, 2106955), (25, 842782), (50, 421391), (83, 253850), (166, 126925), (415, 50770), (830, 25385), (2075, 10154), (4150, 5077)]