21257070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{708569}}^1$

素因数の和:708579

約数の個数: 16

約数和(自身を含む): 51017040

約数和(自身を除く): 29759970

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 708569, 1417138, 2125707, 3542845, 4251414, 7085690, 10628535, 21257070]

約数ペア:

[(1, 21257070), (2, 10628535), (3, 7085690), (5, 4251414), (6, 3542845), (10, 2125707), (15, 1417138), (30, 708569)]