388227

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:175

約数の個数: 24

約数和(自身を含む): 638400

約数和(自身を除く): 250173

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 139, 147, 399, 417, 931, 973, 2641, 2793, 2919, 6811, 7923, 18487, 20433, 55461, 129409, 388227]

約数ペア:

[(1, 388227), (3, 129409), (7, 55461), (19, 20433), (21, 18487), (49, 7923), (57, 6811), (133, 2919), (139, 2793), (147, 2641), (399, 973), (417, 931)]