394448721

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1\times {\mathrm{6983}}^1$

素因数の和:7996

約数の個数: 16

約数和(自身を含む): 554250240

約数和(自身を除く): 159801519

約数列:

[1, 3, 19, 57, 991, 2973, 6983, 18829, 20949, 56487, 132677, 398031, 6920153, 20760459, 131482907, 394448721]

約数ペア:

[(1, 394448721), (3, 131482907), (19, 20760459), (57, 6920153), (991, 398031), (2973, 132677), (6983, 56487), (18829, 20949)]