21486388

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{69761}}^1$

素因数の和:69783

約数の個数: 24

約数和(自身を含む): 46880064

約数和(自身を除く): 25393676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 69761, 139522, 279044, 488327, 767371, 976654, 1534742, 1953308, 3069484, 5371597, 10743194, 21486388]

約数ペア:

[(1, 21486388), (2, 10743194), (4, 5371597), (7, 3069484), (11, 1953308), (14, 1534742), (22, 976654), (28, 767371), (44, 488327), (77, 279044), (154, 139522), (308, 69761)]