21975506

素因数分解:

$2^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{2749}}^1$

素因数の和:3329

約数の個数: 16

約数和(自身を含む): 37752000

約数和(自身を除く): 15776494

約数列:

[1, 2, 7, 14, 571, 1142, 2749, 3997, 5498, 7994, 19243, 38486, 1569679, 3139358, 10987753, 21975506]

約数ペア:

[(1, 21975506), (2, 10987753), (7, 3139358), (14, 1569679), (571, 38486), (1142, 19243), (2749, 7994), (3997, 5498)]