19908447

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 30616320

約数和(自身を除く): 10707873

約数列:

[1, 3, 13, 19, 39, 57, 67, 201, 247, 401, 741, 871, 1203, 1273, 2613, 3819, 5213, 7619, 15639, 16549, 22857, 26867, 49647, 80601, 99047, 297141, 349271, 510473, 1047813, 1531419, 6636149, 19908447]

約数ペア:

[(1, 19908447), (3, 6636149), (13, 1531419), (19, 1047813), (39, 510473), (57, 349271), (67, 297141), (201, 99047), (247, 80601), (401, 49647), (741, 26867), (871, 22857), (1203, 16549), (1273, 15639), (2613, 7619), (3819, 5213)]