21439443

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:738

約数の個数: 16

約数和(自身を含む): 29173760

約数和(自身を除く): 7734317

約数列:

[1, 3, 73, 219, 223, 439, 669, 1317, 16279, 32047, 48837, 96141, 97897, 293691, 7146481, 21439443]

約数ペア:

[(1, 21439443), (3, 7146481), (73, 293691), (219, 97897), (223, 96141), (439, 48837), (669, 32047), (1317, 16279)]