21391242

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{155009}}^1$

素因数の和:155037

約数の個数: 16

約数和(自身を含む): 44642880

約数和(自身を除く): 23251638

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 155009, 310018, 465027, 930054, 3565207, 7130414, 10695621, 21391242]

約数ペア:

[(1, 21391242), (2, 10695621), (3, 7130414), (6, 3565207), (23, 930054), (46, 465027), (69, 310018), (138, 155009)]