164778393

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{3319}}^1$

素因数の和:3421

約数の個数: 32

約数和(自身を含む): 252851200

約数和(自身を除く): 88072807

約数列:

[1, 3, 13, 19, 39, 57, 67, 201, 247, 741, 871, 1273, 2613, 3319, 3819, 9957, 16549, 43147, 49647, 63061, 129441, 189183, 222373, 667119, 819793, 2459379, 2890849, 4225087, 8672547, 12675261, 54926131, 164778393]

約数ペア:

[(1, 164778393), (3, 54926131), (13, 12675261), (19, 8672547), (39, 4225087), (57, 2890849), (67, 2459379), (201, 819793), (247, 667119), (741, 222373), (871, 189183), (1273, 129441), (2613, 63061), (3319, 49647), (3819, 43147), (9957, 16549)]