21339220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{152423}}^1$

素因数の和:152439

約数の個数: 24

約数和(自身を含む): 51214464

約数和(自身を除く): 29875244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 152423, 304846, 609692, 762115, 1066961, 1524230, 2133922, 3048460, 4267844, 5334805, 10669610, 21339220]

約数ペア:

[(1, 21339220), (2, 10669610), (4, 5334805), (5, 4267844), (7, 3048460), (10, 2133922), (14, 1524230), (20, 1066961), (28, 762115), (35, 609692), (70, 304846), (140, 152423)]