21041398

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79103}}^1$

素因数の和:79131

約数の個数: 16

約数和(自身を含む): 37969920

約数和(自身を除く): 16928522

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79103, 158206, 553721, 1107442, 1502957, 3005914, 10520699, 21041398]

約数ペア:

[(1, 21041398), (2, 10520699), (7, 3005914), (14, 1502957), (19, 1107442), (38, 553721), (133, 158206), (266, 79103)]