20853028

素因数分解:

$2^2\times 7^3\times {\mathrm{15199}}^1$

素因数の和:15224

約数の個数: 24

約数和(自身を含む): 42560000

約数和(自身を除く): 21706972

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15199, 30398, 60796, 106393, 212786, 425572, 744751, 1489502, 2979004, 5213257, 10426514, 20853028]

約数ペア:

[(1, 20853028), (2, 10426514), (4, 5213257), (7, 2979004), (14, 1489502), (28, 744751), (49, 425572), (98, 212786), (196, 106393), (343, 60796), (686, 30398), (1372, 15199)]