21077240

素因数分解:

$2^3\times 5^1\times {\mathrm{526931}}^1$

素因数の和:526942

約数の個数: 16

約数和(自身を含む): 47423880

約数和(自身を除く): 26346640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 526931, 1053862, 2107724, 2634655, 4215448, 5269310, 10538620, 21077240]

約数ペア:

[(1, 21077240), (2, 10538620), (4, 5269310), (5, 4215448), (8, 2634655), (10, 2107724), (20, 1053862), (40, 526931)]