21129124786

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12472919}}^1$

素因数の和:12472950

約数の個数: 24

約数和(自身を含む): 39813560640

約数和(自身を除く): 18684435854

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12472919, 24945838, 87310433, 137202109, 174620866, 274404218, 960414763, 1509223199, 1920829526, 3018446398, 10564562393, 21129124786]

約数ペア:

[(1, 21129124786), (2, 10564562393), (7, 3018446398), (11, 1920829526), (14, 1509223199), (22, 960414763), (77, 274404218), (121, 174620866), (154, 137202109), (242, 87310433), (847, 24945838), (1694, 12472919)]