21396190

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20773}}^1$

素因数の和:20883

約数の個数: 16

約数和(自身を含む): 38888928

約数和(自身を除く): 17492738

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 20773, 41546, 103865, 207730, 2139619, 4279238, 10698095, 21396190]

約数ペア:

[(1, 21396190), (2, 10698095), (5, 4279238), (10, 2139619), (103, 207730), (206, 103865), (515, 41546), (1030, 20773)]